Nutritional Fundamentals and Energy-Yielding Foods
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Questions and Answers

What is a significant consequence of untreated periodontitis in the elderly?

  • Detachment of periodontal ligaments (correct)
  • Improved oral hygiene
  • Reduced risk of systemic diseases
  • Enhanced nutritional absorption
  • Which practice is emphasized as essential for preventing dental caries in the elderly?

  • Consuming high-sugar diets
  • Avoiding fluoride treatments
  • Practicing good oral hygiene (correct)
  • Using a manual toothbrush
  • How can nutrition impact the health of elderly individuals?

  • It has no significant impact on overall health.
  • It solely affects weight management.
  • It plays a role in growth and disease prevention. (correct)
  • It is only important for dental health.
  • What role do antioxidants play in the health of the elderly?

    <p>They enhance oral health and prevent chronic diseases. (D)</p> Signup and view all the answers

    What dietary elements are emphasized as essential for maintaining health?

    <p>Proteins, fats, carbohydrates, vitamins, and minerals (B)</p> Signup and view all the answers

    What is the primary focus of nutrition?

    <p>The relationship between food and health (A)</p> Signup and view all the answers

    Which of the following classifications of foods focuses on their source?

    <p>Classification by Origin (A)</p> Signup and view all the answers

    Which nutrients are considered macronutrients?

    <p>Proteins, Fats, Carbohydrates (A)</p> Signup and view all the answers

    How many essential amino acids are there that must be obtained through diet?

    <p>8 (A)</p> Signup and view all the answers

    Which type of food is categorized as protective foods?

    <p>Vegetables and fruits (D)</p> Signup and view all the answers

    What defines good nutrition?

    <p>Maintaining a nutritional status for health and growth (B)</p> Signup and view all the answers

    Which organic compounds are primarily made from amino acids?

    <p>Proteins (A)</p> Signup and view all the answers

    What term best describes foods that provide the body with energy?

    <p>Energy-Giving Foods (C)</p> Signup and view all the answers

    Which amino acid is NOT classified as an essential amino acid?

    <p>Proline (B)</p> Signup and view all the answers

    What is a critical function of proteins in the body?

    <p>Repairing and maintaining body tissues (C)</p> Signup and view all the answers

    What does a serum albumin concentration of less than 3.0 g/dL indicate?

    <p>Severe malnutrition (A)</p> Signup and view all the answers

    Which group needs increased protein intake?

    <p>Children in rapid growth (D)</p> Signup and view all the answers

    How many calories per gram does protein provide?

    <p>4 cal/gm (C)</p> Signup and view all the answers

    What is the primary reason why fats are essential in our diet?

    <p>To absorb vitamins A, D, E, and K (B)</p> Signup and view all the answers

    What percentage of total caloric intake should come from fats, according to dietary recommendations?

    <p>20-35% (B)</p> Signup and view all the answers

    Which type of fat is considered the least healthy due to its effect on cholesterol levels?

    <p>Saturated fats (C)</p> Signup and view all the answers

    What are trans fats primarily produced from?

    <p>Hydrogenation of vegetable oils (B)</p> Signup and view all the answers

    What is the primary energy content provided by carbohydrates per gram?

    <p>4 kcal (A)</p> Signup and view all the answers

    Which lipoprotein is known as ‘bad’ cholesterol?

    <p>Low-density lipoproteins (LDLs) (D)</p> Signup and view all the answers

    Which of the following foods contains dietary cholesterol?

    <p>Eggs (D)</p> Signup and view all the answers

    Which type of fiber absorbs water and helps create bulkier stool?

    <p>Insoluble Fiber (B)</p> Signup and view all the answers

    Which of the following fatty acids is essential and must be obtained through diet?

    <p>Arachidonic acid (A)</p> Signup and view all the answers

    What are essential fatty acids primarily needed for?

    <p>Cell membrane integrity (C)</p> Signup and view all the answers

    Which of the following is considered a simple sugar?

    <p>Fructose (B)</p> Signup and view all the answers

    What health risk is associated with the consumption of trans fats?

    <p>Increased risk of cardiovascular diseases (C)</p> Signup and view all the answers

    What is the main source of omega-3 fatty acids?

    <p>Cold-water fish (B)</p> Signup and view all the answers

    The main health benefit associated with soluble fiber is its ability to?

    <p>Lower blood cholesterol (A)</p> Signup and view all the answers

    What type of carbohydrate is primarily found in grains and is stored as glycogen in the body?

    <p>Starch (D)</p> Signup and view all the answers

    Which vitamin is primarily associated with the function of vision?

    <p>Vitamin A (D)</p> Signup and view all the answers

    What is a common consequence of trans fatty acid intake?

    <p>Increased LDL levels (B)</p> Signup and view all the answers

    What is the recommended daily fiber intake to achieve health benefits?

    <p>20-30 grams (A)</p> Signup and view all the answers

    Which group of vitamins is not stored in significant amounts in the body?

    <p>Water-Soluble Vitamins (B)</p> Signup and view all the answers

    What substance is primarily responsible for producing gel-like material that can lower blood glucose levels?

    <p>Soluble Fiber (B)</p> Signup and view all the answers

    Which food source is high in insoluble fiber?

    <p>Whole wheat flour (A)</p> Signup and view all the answers

    Which type of fat is crucial to avoid due to its harmful effects on heart health?

    <p>Trans fats (D)</p> Signup and view all the answers

    What role do vitamins play in energy metabolism?

    <p>They assist in obtaining energy from nutrients (B)</p> Signup and view all the answers

    What is the primary role of antioxidants in oral health?

    <p>They neutralize free radicals and prevent cell damage. (D)</p> Signup and view all the answers

    Which of the following is considered a source of antioxidants?

    <p>Dark chocolate (B)</p> Signup and view all the answers

    How do free radicals affect cells?

    <p>They attack nucleic acids and lead to cellular damage. (B)</p> Signup and view all the answers

    What condition is likely exacerbated by poor oral hygiene in elderly individuals?

    <p>Periodontitis (C)</p> Signup and view all the answers

    Which nutrient is crucial for preventing deficiencies in elderly people?

    <p>Fiber (B)</p> Signup and view all the answers

    What physiological change occurs in the elderly that impacts digestion?

    <p>Decreased digestive hormones and enzymes. (A)</p> Signup and view all the answers

    What is a common impact of xerostomia in older adults?

    <p>Difficulty in eating and speaking. (C)</p> Signup and view all the answers

    Why are antioxidants preferred from dietary sources rather than topical applications?

    <p>Dietary antioxidants are absorbed better by the body. (C)</p> Signup and view all the answers

    What benefits do antioxidants provide to cells?

    <p>They protect against premature aging and inflammation. (C)</p> Signup and view all the answers

    Which mineral is essential for bone health, particularly in the elderly?

    <p>Calcium (D)</p> Signup and view all the answers

    What dietary change can help repair cellular damage caused by oxidative stress?

    <p>Increasing antioxidant consumption. (D)</p> Signup and view all the answers

    What is the primary cause of oxidative stress in the oral cavity?

    <p>Infection and inflammation. (D)</p> Signup and view all the answers

    What is a specific dietary recommendation for promoting oral health?

    <p>Incorporate spices like ginger and turmeric. (D)</p> Signup and view all the answers

    What is the result of free radicals attacking nucleic acids?

    <p>Cellular damage and instability. (A)</p> Signup and view all the answers

    What primarily contributes to oxidative stress in the oral cavity?

    <p>Infection and inflammation of the gingiva (A)</p> Signup and view all the answers

    What physiological change is commonly seen in older adults?

    <p>Decreased digestive hormones and enzymes (C)</p> Signup and view all the answers

    Which nutrient is crucial for maintaining bone health in elderly individuals?

    <p>Calcium (D)</p> Signup and view all the answers

    What impacts the ability of the elderly to eat and speak significantly?

    <p>Xerostomia (Dry Mouth) (D)</p> Signup and view all the answers

    Which of the following foods is richest in antioxidants?

    <p>Cherries (A)</p> Signup and view all the answers

    What condition results from gingival inflammation and can lead to tooth loss?

    <p>Periodontitis (A)</p> Signup and view all the answers

    What is one of the main roles of antioxidants in oral health?

    <p>Neutralizing free radicals (B)</p> Signup and view all the answers

    What type of dietary practice is important for maintaining long-term health in elderly individuals?

    <p>Balanced diet rich in nutrients (A)</p> Signup and view all the answers

    Which of the following is NOT a common change in sensory perception in the elderly?

    <p>Increased sense of taste (C)</p> Signup and view all the answers

    What impact does oxidative stress have on cells?

    <p>Leads to cellular damage (C)</p> Signup and view all the answers

    Which of the following nutrients helps in calcium absorption and bone health?

    <p>Vitamin D (D)</p> Signup and view all the answers

    What complication is associated with impaired oral hygiene in the elderly?

    <p>Increased risk of periodontitis (D)</p> Signup and view all the answers

    How do antioxidants help when diseases have developed?

    <p>They facilitate repair of existing damage. (B)</p> Signup and view all the answers

    What is a nutritional priority for digestive health in elderly individuals?

    <p>Adequate fiber intake (B)</p> Signup and view all the answers

    What is a critical function of Vitamin D?

    <p>Promotes intestinal absorption of calcium and phosphorus (C)</p> Signup and view all the answers

    Which of the following is NOT a sign of Vitamin A deficiency?

    <p>Rickets (D)</p> Signup and view all the answers

    What can result from a deficiency of Vitamin B12?

    <p>Pernicious anemia (C)</p> Signup and view all the answers

    What condition is characterized by swollen and bleeding gums due to Vitamin deficiency?

    <p>Scurvy (C)</p> Signup and view all the answers

    What is a major function of calcium in the body?

    <p>Bone and tooth development (A)</p> Signup and view all the answers

    Which mineral is crucial for proper nerve transmission?

    <p>Sodium (B)</p> Signup and view all the answers

    What dietary source is high in magnesium?

    <p>Nuts (A)</p> Signup and view all the answers

    Which of the following is not a trace mineral?

    <p>Calcium (D)</p> Signup and view all the answers

    What factor does NOT contribute to obesity?

    <p>Adequate sleep (D)</p> Signup and view all the answers

    What is a consequence of being overweight?

    <p>Risk of cardiovascular diseases (D)</p> Signup and view all the answers

    What role does Vitamin C play in the body?

    <p>Collagen formation (B)</p> Signup and view all the answers

    When are vitamin supplements particularly recommended?

    <p>During illness recovery and breastfeeding (B)</p> Signup and view all the answers

    Which of the following is a characteristic of major minerals?

    <p>Required in large amounts (A)</p> Signup and view all the answers

    Signup and view all the answers

    Flashcards

    What is nutrition?

    The science of food and its relation to health, focusing on the role of nutrients in body growth, development, and maintenance.

    What are nutrients?

    Specific dietary components like proteins, vitamins, and minerals that are necessary for good health.

    What is dietetics?

    The practical use of nutritional principles to plan meals for well and unhealthy individuals.

    What is a diet?

    The combination of foods and drinks consumed daily.

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    What are proteins?

    Complex organic compounds made up of amino acids. They are essential for growth, repair, and various bodily functions.

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    What are amino acids?

    The building blocks of proteins. There are 20 essential amino acids.

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    What are essential amino acids?

    Amino acids that cannot be produced by the body and need to be obtained from food.

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    What are energy-giving foods?

    Foods that provide energy for the body, such as cereals, sugars, fats, and oils.

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    Essential amino acids

    Essential amino acids are those that cannot be synthesized by the human body and must be obtained through diet.

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    List the 9 essential amino acids.

    These are the 9 essential amino acids that humans cannot synthesize and must obtain from their diet: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

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    How is protein nutrition status measured?

    Serum albumin is a protein found in the blood that is used to assess protein nutrition status.

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    What is a calorie?

    A unit used to measure energy. Protein and carbohydrates contain 4 calories per gram, while fat contains 9 calories per gram.

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    What is energy balance?

    Energy balance occurs when the number of calories consumed equals the number of calories expended.

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    What are fats?

    Fat is a nutrient that provides energy, aids in vitamin absorption, and contributes to cell structure. It is composed of triglycerides and classified into saturated, unsaturated, and trans fats.

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    What are saturated fats?

    Saturated fats are typically solid at room temperature and found in animal sources. They can increase cholesterol levels and should be limited.

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    What are unsaturated fats?

    Unsaturated fats are liquid at room temperature and often found in plant sources. They are classified into monounsaturated and polyunsaturated fats.

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    What are trans fats?

    Trans fats are unhealthy fats created through a process called hydrogenation. They increase the risk of heart disease and should be avoided.

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    What is cholesterol?

    Cholesterol is a waxy substance found in every cell in your body. It is not considered a fat but plays a role in cell structure and hormone production. It is categorized into LDL ('bad') and HDL ('good') cholesterol.

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    Explain LDL and HDL cholesterol.

    LDL cholesterol is associated with an increased risk of heart disease as it can accumulate in arteries. HDL cholesterol helps remove cholesterol from the blood and reduces heart disease risk.

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    What are essential fatty acids?

    Essential fatty acids are those that cannot be synthesized by the human body and must be obtained through diet. They are crucial for various bodily functions, including cell growth and hormone production.

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    List some essential fatty acids and their sources.

    Linoleic acid and arachidonic acid are examples of essential fatty acids found in various plant and animal sources.

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    Vitamin A

    A fat-soluble vitamin that is essential for maintaining the integrity of epithelial tissues, supporting growth, and possibly protecting against some epithelial cancers.

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    What are some signs of Vitamin A deficiency?

    Night blindness, conjunctival xerosis (dryness of the conjunctiva), Bitot's spots (keratin deposits on the conjunctiva), corneal xerosis (dry and hazy cornea), and keratomalacia (severe dryness and clouding of the cornea).

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    Vitamin D

    A fat-soluble vitamin responsible for calcium and phosphorus absorption, bone mineralization, and collagen maturation in bones.

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    What can Vitamin D deficiency lead to?

    Rickets in children, and osteomalacia in adults.

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    Thiamine (Vitamin B1)

    A water-soluble vitamin essential for glucose metabolism and carbohydrate utilization.

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    Vitamin B12

    A complex organo-metallic compound with a cobalt atom that plays a vital role in DNA synthesis and fatty acid synthesis. It cooperates with folate in DNA synthesis.

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    What are some consequences of Vitamin B12 deficiency?

    Pernicious anemia, demyelinating neurologic lesions in the spinal cord, and infertility in some animal species.

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    Vitamin C

    A water-soluble vitamin highly sensitive to heat, crucial for tissue oxidation and collagen formation. It accounts for 25% of total body protein.

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    What are the symptoms of Vitamin C deficiency (Scurvy)?

    Swollen and bleeding gums, subcutaneous bruising or bleeding into the skin or joints, delayed wound healing, anemia and weakness.

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    What are essential minerals?

    Inorganic elements required by the body in small amounts for various physiological functions.

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    What are the major minerals?

    Calcium, phosphorus, potassium, magnesium, sodium, chlorine, and sulfur.

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    What are the trace minerals?

    Iron, iodine, fluoride, zinc, manganese, chromium, molybdenum, copper, and selenium.

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    What is obesity?

    Abnormal or excessive fat accumulation that presents a risk to health.

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    What are some causes of obesity?

    Family history of obesity, unhealthy eating habits, inactivity or inadequate physical exercise, certain medical conditions and medications, changes in sleep patterns, advanced age, and pregnancy.

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    What are free radicals?

    Molecules with unpaired electrons in their outer shells, making them highly reactive and unstable.

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    What is oxidative stress?

    A process where free radicals damage cells, leading to various health problems.

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    What are antioxidants?

    Substances that prevent damage caused by free radicals by donating electrons.

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    What are some sources of antioxidants?

    Fruits, vegetables, spices, and dark chocolate are good sources of antioxidants.

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    How do antioxidants benefit oral health?

    Antioxidants protect against premature aging and inflammation, especially in the mouth.

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    What is periodontitis?

    A condition caused by inflammation in the gums, leading to detachment of ligaments and tooth loss.

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    What is geriatric nutrition?

    This type of nutrition focuses on the specific needs of older adults.

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    What changes occur with aging that affect nutrition and oral health?

    Aging can affect digestion, muscles, senses, and even lead to dry mouth, impacting oral health.

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    What are some important nutrients for older adults?

    Calcium is crucial for bone health and is found in dairy products and leafy greens, while vitamin D supports calcium absorption.

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    Why is fiber important for older adults?

    Essential for digestive health, fiber is found in whole grains, fruits, and vegetables.

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    What are some ways to manage dental health in older adults?

    Maintaining good oral hygiene with toothbrushes and fluoride is crucial for preventing cavities and gum disease in older adults.

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    What is periodontitis?

    The condition where gums become inflamed, leading to detachment of periodontal ligaments and tooth loss.

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    Why is a balanced diet important?

    A balanced diet rich in all essential nutrients is vital for overall health and well-being.

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    How do antioxidants support oral health?

    Antioxidants contribute to oral health by neutralizing free radicals and protecting cells from damage.

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    What can you do to improve your oral health?

    Maintaining good oral hygiene and adopting a healthy diet rich in antioxidants can improve oral health and help prevent chronic diseases.

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    How does Fluoride help prevent dental caries?

    Fluoride is a mineral that strengthens tooth enamel, making it more resistant to decay. It is often applied topically to teeth in the form of toothpaste or mouthwash.

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    Why is oral hygiene essential for elderly individuals?

    Good oral hygiene practices, including brushing and flossing, are critical for preventing the buildup of plaque and bacteria, which can lead to dental caries and periodontal diseases.

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    What is the importance of a balanced diet?

    A well-balanced diet rich in essential nutrients, including proteins, fats, carbohydrates, vitamins, and minerals, is crucial for maintaining overall health and well-being. This is particularly important for children and the elderly, who have specific nutritional needs.

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    What is the role of Antioxidants in health?

    Antioxidants are substances that protect cells from damage caused by free radicals, which can contribute to chronic diseases. They are often found in fruits, vegetables, and other plant-based foods.

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    Functions of Fats

    Fats are high-energy foods, providing as much as 9 kcal for every gram. They serve as vehicles for fat-soluble vitamins and support vital organs, providing insulation against cold.

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    Non-Caloric Roles of Fat

    Vegetable fats are rich sources of essential fatty acids needed by the body for growth, structural integrity of the cell membrane, and decreased platelet adhesiveness. Diets rich in essential fatty acids have been reported to reduce serum cholesterol and low-density lipoproteins.

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    Functions of Carbohydrates

    Carbohydrates are the main source of energy, providing 4 kcal per gram. They are also essential for the oxidation of fats and the synthesis of certain non-essential amino acids.

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    Types of Carbohydrates

    Carbohydrates can be categorized into two types: - Simple sugars: - Glucose (monosaccharide) – most common form - Fructose (monosaccharide) – found in fruits and berries - Sucrose (disaccharide) – sources include granulated sugar, milk, and milk products - Complex carbohydrates: - Starches – found in flour, pasta, potatoes, and stored in the body as glycogen - Fiber

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    Sugars in Our Diet

    Some sugars come naturally in foods, like apples, while others have added sugars, such as chocolate. Regardless, the body treats all sugars similarly.

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    Empty Calories Explained

    Empty calories are derived from foods that contain very few healthy nutrients. These foods typically have a lot of sugar, such as candy, cakes, doughnuts, and cookies.

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    Starch: A Complex Carb

    Starch is another type of carbohydrate, mainly found in grains such as wheat, rice, corn, and oats, as well as legumes, dry beans, peas, potatoes, and yams. High-starch foods usually contain more vitamins, minerals, and fiber than high-sugar foods.

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    Hidden Starches in Foods

    Some starches are less obvious as they are added to foods during cooking. Examples include adding flour to gravy to thicken it and breading on meats and poultry, such as fried chicken or nuggets.

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    Fiber: The Indigestible Carb

    The final type of carbohydrate is fiber. Our bodies do not have the enzymes needed to break fiber down into smaller units for absorption, meaning fiber cannot be used for energy. There are two types of fiber: - Insoluble Fiber (or roughage) - Soluble Fiber

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    Insoluble Fiber Explained

    Insoluble fiber does not dissolve in water but absorbs water, creating bulkier, softer stool that makes it easier for the small intestine and colon to push waste through. This extra bulk reduces constipation and may help prevent diseases, such as colorectal cancer. Whole wheat flour, nuts, and many vegetables are good sources of insoluble fiber.

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    Understanding Soluble Fiber

    Soluble fiber dissolves in water to form a gel-like, gummy material that can help lower blood cholesterol and glucose levels. Soluble fiber is found in oats, peas, beans, apples, citrus fruits, and carrots.

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    Health Benefits of Fiber

    Fiber offers many health benefits, including protection against: - Colon and rectal cancer - Breast cancer - Constipation - Heart disease - Diabetes - Obesity The recommended intake is 20-30 grams, while the average intake is about 12 grams.

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    Functions of Fiber in the Body

    The functions of fiber include: - Maintaining healthy skin - Insulating body organs - Maintaining body temperature - Promoting healthy cell function - Carrying fat-soluble vitamins (A, D, E, and K) - Serving as a concentrated form of energy

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    The Dangers of Trans Fats

    Avoiding trans fatty acids, which are created by the process of turning liquid oil into solid, is crucial. These fats increase LDL levels while lowering HDL levels, resulting in a higher risk of coronary and heart disease, including sudden cardiac death. Trans fats are found in many margarines, baked goods, and restaurant deep-fried foods.

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    Dietary Fiber: A Closer Look

    Dietary fiber is mainly non-starch polysaccharides, found in vegetables, fruits, and grains. It can be divided broadly into cellulose and non-cellulose polysaccharides, which are all degraded to a greater or lesser extent by the microflora in the human colon.

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    How to Increase Fiber Intake

    To increase fiber intake, consider the following strategies: - Eat a variety of plant-based foods.- Consume plenty of fruits and vegetables.- Look for ‘bran’, ‘whole grain’, or ‘whole wheat flour’ on food labels.- Choose whole grains for at least half of your grain intake.- Eat beans and legumes often.- Opt for brown rice instead of white rice.- Leave the skin on your fruits and vegetables.- Choose whole fruit over juice.- Substitute higher fiber ingredients in cooking (such as adding bran or oatmeal).

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    Oxidative stress in dentistry

    Oxidative stress in the mouth, caused by infections, inflammation, and dental procedures. It results from free radicals generated by these processes.

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    Periodontitis

    A condition where the gingiva becomes inflamed, leading to detachment of periodontal ligaments and loss of teeth.

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    Geriatric nutrition

    Nutrition principles tailored to older adults, considering changes in their physiology, psychology, and social factors.

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    Reduced digestion in aging

    The reduction in the body's ability to digest and absorb nutrients due to decreased digestive hormones and enzymes in older age.

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    Slower gastric emptying in aging

    A change in gastrointestinal motility in older adults, resulting in slower food emptying from the stomach.

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    Bone density changes in aging

    Decreased bone density in older adults leading to increased fracture risk and osteoporosis.

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    Sensory changes in aging

    The decrease in taste and smell sensitivity in older adults, impacting their appetite and food intake.

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    Xerostomia (Dry Mouth)

    Dry mouth affecting a large proportion of the elderly, making it challenging to eat and speak.

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    Calcium for the elderly

    A mineral essential for bone health, found in dairy products and leafy greens.

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    Vitamin D for the elderly

    A vitamin that supports calcium absorption and bone health, obtained from sunlight and fortified foods.

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    Fiber for the elderly

    A dietary component that supports digestive health, found in whole grains, fruits, and vegetables.

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    Hydration for the elderly

    Adequate fluid intake is crucial for overall health and bodily functions, particularly for the elderly.

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    Antioxidants

    Substances that prevent oxidation and protect cells from damage caused by free radicals, often found in foods.

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    Free radicals

    Highly reactive molecules with unpaired electrons, able to damage cells.

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    Antioxidant mechanism

    The process of neutralizing free radicals by donating electrons, protecting cells from damage.

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    Study Notes

    Nutritional Fundamentals

    • Nutrition is the science of food and its relationship to health, focusing on how nutrients support growth, development, and maintenance.
    • Nutrients are dietary components (proteins, vitamins, minerals) vital for well-being.
    • Dietetics is the practical application of nutrition principles, planning meals for healthy and ill individuals.
    • Good nutrition maintains a healthy status, enabling good growth and health.

    Energy-Yielding Foods

    • Protein, carbohydrates, and fats were recognized in the 19th century as energy sources.
    • Metabolism and energy requirements of these foods are significant areas of study.

    Defining Food and Diet

    • Food nourishes the body. It provides energy, building blocks, regulation, protection.
    • Diet includes all consumed foods and beverages.
    • Foods are classified by origin (animal, vegetable) and chemical composition (proteins, fats, carbs, vitamins, minerals).

    Classification of Foods

    • Bodybuilding Foods: These include meat, milk, poultry, fish, eggs, and pulses, aiding in tissue development.
    • Energy-Giving Foods: These include cereals, sugars, oils, and fats, supplying energy.
    • Protective Foods: These include fruits, vegetables, and milk, contributing to overall protection and well-being.

    Macronutrients

    • Proteins: Complex, nitrogenous compounds containing sulfur, also phosphorus, iron in some cases. Made up of amino acids.
    • Fats: High-energy source, crucial for vitamin absorption, flavoring, and satiety. Mostly triglycerides in adipose tissue. These consist of saturated, unsaturated (mono, poly), and trans fats.
    • Carbohydrates: Main energy source (4 kcal/gram). Essential for fat oxidation and amino acid synthesis. Composed of simple sugars (glucose, fructose, sucrose) and complex carbohydrates (starch, fiber).

    Micronutrients

    • Vitamins: Essential organic compounds in small quantities for bodily processes, not energy providers. They're categorized into fat-soluble (A, D, E, K) and water-soluble (vitamin C, B-complex).
    • Minerals: Inorganic elements needed in small amounts for various bodily functions (bone and muscle health, hormone/enzyme production). Categorized as major minerals (calcium, phosphorus, sodium, potassium, magnesium) and trace minerals (iron, zinc, copper).

    Proteins: Detail

    • 20 amino acids form the building blocks of proteins.
    • 8 amino acids are essential, derived from dietary protein as the body cannot produce them (histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine).
    • Protein functions include tissue building, repair, osmotic pressure maintenance, synthesis of vital molecules, enzymes, and hormones, and nutrient/oxygen transport.
    • Protein nutrition status is assessed by serum albumin concentration (3.5 g/dL or more is healthy).

    Essential Amino Acids

    • List of essential amino acids.

    Fats: Detail

    • Types: saturated (solid at room temp, mainly animal sources), unsaturated (liquid at room temperature, mainly plant sources, including omega-3 fatty acids found in fish and plant oils), and trans fats (partially hydrogenated vegetable oils).
    • Health risks of trans fats include heart disease, obesity, and other chronic diseases.

    Carbohydrates: Detail

    • Categorized as simple sugars (glucose, fructose, and sucrose) and complex carbohydrates (starch and fiber).
    • Starch is found in grains, legumes, potatoes, and converted to glycogen for storage.
    • Fiber is indigestible and contributes to digestive health (insoluble and soluble fiber).

    Vitamins: Detail

    • Vitamin A: crucial for vision, tissue function, and growth. Deficiency leads to night blindness and xerophthalmia.
    • Vitamin D: aids calcium absorption and bone health; deficiency causes rickets/osteomalacia in children/adults.
    • Vitamin B12: critical for DNA synthesis and fatty acid synthesis. Deficiency leads to anemia and neurological issues.
    • Vitamin C: essential for collagen formation and antioxidant support. Deficiency leads to scurvy.

    Minerals: Detail

    • Major minerals (calcium, phosphorus, sodium, potassium, magnesium) are essential for various bodily functions.
    • Trace minerals (iron, zinc, copper) play critical roles in energy-related processes, immunity, and other body functions.

    Essential Nutrients

    • Avoiding trans fats is important for health.

    Energy Balance

    • Energy balance occurs when caloric intake equals energy expenditure.

    Obesity

    • Obesity is defined as excessive fat accumulation.
    • Causes include genetics, lifestyle, medical conditions, and medications.
    • Negative consequences include fatigue, shortness of breath, joint pain, diabetes, and cardiovascular problems.

    Nutritional Needs in Children

    • Crucial for growth and development.
    • Recommendations include breastfeeding (vitamin D supplementation) and age-appropriate nutrition.

    Geriatric Nutrition

    • Addresses physiological, psychological, and social changes in older adults.
    • Special concerns include decreased digestion, absorption, taste/smell, and dry mouth (xerostomia).
    • Recommendations include improved calcium, vitamin D, fiber, and hydration intake for bone and digestive health.

    Oral Health

    • Importance of good oral hygiene, particularly in the elderly, to prevent dental caries and periodontal disease.

    Antioxidants

    • Antioxidants help neutralize free radicals and protect cells from damage.
    • Sources include fruits, vegetables, spices, and dark chocolate.
    • Benefits include improved oral health and reduced risk of periodontal disease.

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    Description

    Explore the key concepts of nutrition, including the role of nutrients in health, energy-yielding foods, and the classification of diets. This quiz covers the basics of food science and its impact on growth and well-being. Test your understanding of food sources and diet essentials.

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