Introduction to Food and Nutrition

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Questions and Answers

What is the definition of malnutrition?

  • A complete absence of carbohydrates in the diet
  • An optimal level of nutrient intake for growth
  • An undesirable kind of nutrition leading to ill-health (correct)
  • An excessive intake of all nutrients

Which of the following nutrients are classified as macronutrients?

  • Vitamins and minerals
  • Sugars and amino acids
  • Phytochemicals and antioxidants
  • Carbohydrates, fats, and proteins (correct)

What percentage of energy from a balanced diet should ideally come from protein?

  • 5-7%
  • 25-30%
  • 15-20%
  • 10-12% (correct)

What is one essential requirement of health according to the World Health Organization?

<p>Optimal growth and development (D)</p> Signup and view all the answers

What is the primary function of carbohydrates in the diet?

<p>Serving as the major source of energy (A)</p> Signup and view all the answers

Which of the following best defines nutritional status?

<p>The health status influenced by nutrient intake and metabolism (B)</p> Signup and view all the answers

Which of the following vitamins are fat soluble?

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

Which definition best describes 'Nutrition'?

<p>The science of foods and nutrients (B)</p> Signup and view all the answers

What is the main purpose of the five food group system?

<p>To evaluate dietary history and identify nutrient inadequacies (B)</p> Signup and view all the answers

How much energy in a balanced diet should come from fats?

<p>20-25% (A)</p> Signup and view all the answers

Which food can be classified as a fruit?

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

How does food consumption impact health according to the introduction?

<p>It determines nutritional status and health (A)</p> Signup and view all the answers

Which of the following describes undernutrition?

<p>Inadequate intake of essential nutrients (A)</p> Signup and view all the answers

Dietary Reference Intakes (DRIs) are developed using what type of research?

<p>Research studies in the field of nutrition (A)</p> Signup and view all the answers

Which of the following provides energy and different types of fatty acids?

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

Which aspect is NOT covered in the study of food and nutrition?

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

What is one function of food according to the content?

<p>Yields energy and nutrients (B)</p> Signup and view all the answers

What does RDA stand for in nutritional guidelines?

<p>Recommended Dietary Allowances (C)</p> Signup and view all the answers

What role does dietary fat play in the body?

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

Which term best describes the 'state of complete physical, social and mental well-being'?

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

Which of these items is classified under sugars?

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

What does RDA stand for, and what percentage of the healthy population does it adequately cover?

<p>Recommended Dietary Allowance; 97-98% (D)</p> Signup and view all the answers

What is the purpose of Tolerable Upper Intake Levels (UL)?

<p>To identify the maximum intake of a nutrient without adverse effects (D)</p> Signup and view all the answers

What does the term 'malnutrition' refer to?

<p>Excess or deficiency of nutrients consumed (B)</p> Signup and view all the answers

Which of the following best describes undernutrition?

<p>A state of nutrient deficiency due to insufficient food intake (B)</p> Signup and view all the answers

What may result from poor nutrition combined with poor health?

<p>Frequent infections and diminished fat-free mass (D)</p> Signup and view all the answers

Why are Adequate Intakes (AI) used instead of RDAs for certain nutrients?

<p>There is insufficient knowledge to determine an Estimated Average Requirement (A)</p> Signup and view all the answers

What is a potential consequence of specific nutrient deficiencies?

<p>Iron deficiency anemia due to inadequate iron consumption (A)</p> Signup and view all the answers

How do dietary traditions impact RDA recommendations?

<p>They must be considered when determining nutrient needs (C)</p> Signup and view all the answers

What primarily causes overnutrition?

<p>Frequent consumption of carbohydrates and fats (D)</p> Signup and view all the answers

What is a significant health risk associated with obesity?

<p>Risk of type 2 diabetes (B)</p> Signup and view all the answers

How is Body Mass Index (BMI) calculated?

<p>Weight in kilograms divided by height in meters squared (D)</p> Signup and view all the answers

What does a higher BMI indicate regarding health risks?

<p>Increased likelihood of developing various diseases (A)</p> Signup and view all the answers

What is the main consequence of overnutrition?

<p>Excessive accumulation of body fat (C)</p> Signup and view all the answers

Which of the following is NOT a consequence of obesity?

<p>Higher metabolic rate (D)</p> Signup and view all the answers

In children, how is BMI assessed?

<p>Compared with age-specific z-scores or percentiles (B)</p> Signup and view all the answers

Which chronic disease is linked to poor nutrition that could be avoided?

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

What is the BMI range that indicates obesity class II?

<p>35.0–39.9 (C)</p> Signup and view all the answers

What nutritional status is indicated by a BMI below 18.5?

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

Why is the BMI criterion modified for South Asian populations?

<p>Because of higher risk of diabetes and heart disease (C)</p> Signup and view all the answers

What is the primary role of food in human health?

<p>To support growth, maintenance, and repair of tissues (B)</p> Signup and view all the answers

Which of the following BMI values is classified as pre-obesity?

<p>25.0–29.9 (D)</p> Signup and view all the answers

What factor does NOT influence food choices made by individuals?

<p>Nutritional value of foods (A)</p> Signup and view all the answers

Nutritional science primarily deals with what?

<p>The nutritional value of foods and nutrient requirements (C)</p> Signup and view all the answers

What BMI value marks the boundary for obesity in South Asian populations?

<p>25 (B)</p> Signup and view all the answers

Flashcards

Fruits

A category of foods including Mango, Guava, Tomato, Papaya, Orange, etc.

Vegetables

A category of foods including greens like Spinach and other vegetables like Carrots, Brinjal, etc.

Vitamins & Minerals

Nutrients found in fruits and vegetables, essential for health

Fats & Sugars

Categories of foods including butter, ghee, oils, and sugar

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Dietary Reference Intakes (DRI)

Standards for nutrient amounts needed by healthy individuals

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Estimated Average Requirement (EAR)

Nutrient needed for 50% of the population studied, used for RDA

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Recommended Dietary Allowance (RDA)

Estimated daily nutrient amount to cover the population's needs

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Five Food Groups

A system used to assess and counsel on appropriate nutrition

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Health

State of complete physical, social, and mental well-being, not merely the absence of disease.

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Food

Products from plants or animals providing energy and nutrients for life, growth, and repair.

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Nutrition

Science of foods, nutrients, and their impact on the body, including social, economic, cultural, and psychological aspects of food and eating.

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Nutrients

Substances in food providing energy, growth, and maintaining bodily functions.

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Food Groups

Categories of food providing specific nutrients.

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Dietary Reference Intakes

Recommendations of nutrients for healthy people.

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Relationship between food, nutrition and health

The connection between the types and quantities of food eaten, nutrients derived, and overall well-being.

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BMI

Body Mass Index, a measure of body fat based on height and weight.

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Nutritional Status

Condition of the body regarding nutrient intake, indicating whether the body is getting appropriate nutrients for maintaining good health and function.

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Nutrients

Chemical substances from food that provide energy, build and repair tissues, and regulate body functions.

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Nutrient Requirements

The minimum amount of a nutrient needed for your body to function normally.

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Nutritional Status

Your health, determined by the nutrients you consume and your body's ability to use them.

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Malnutrition

A health problem caused by too little, too much, or an imbalance of nutrients.

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Undernutrition

Not getting enough essential nutrients.

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Overnutrition

Consuming too much of one or more nutrients.

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Phytochemicals

Non-nutrient compounds in plants with health benefits.

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Functional Foods

Foods containing phytochemicals that offer health advantages.

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Balanced Diet

A diet with different foods providing all necessary nutrients in the right amounts, depending on age, sex, and activity.

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Macronutrients

Nutrients the body needs in larger amounts (grams).

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Micronutrients

Nutrients needed in smaller amounts (milligrams or micrograms).

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Carbohydrates

A type of macronutrient that provides energy (4 kcal/g). Can be simple or complex.

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RDA

Recommended Dietary Allowance; adequate for 97-98% of healthy individuals; varies by physiological groups (infants, adults, etc.) and activity levels; includes a safety margin.

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AI

Adequate Intake; used when insufficient evidence to establish RDA; represents the average intake of a nutrient by a healthy group of people.

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UL

Tolerable Upper Intake Level; maximum intake of a nutrient without adverse side effects in most healthy individuals.

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Malnutrition

Imbalance in nutrient consumption and utilization.

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General Nutrition Imbalance

Excessive or deficient intake of nutrients overall; leading to conditions like obesity or protein-energy malnutrition.

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Specific Nutrition Imbalance

Excess or deficiency in a single nutrient due to diet or disease (e.g., vitamin C deficiency).

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Undernutrition

State of nutrient deficiency due to insufficient food intake; often affects a whole host of nutrients.

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Food, Nutrition, and Health Relationship

Diet plays a crucial role in overall health and well-being; impacting energy, alertness, healing and immunity; proper nutrition prevents malnutrition and illness.

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Overnutrition

Harmful condition caused by consuming too many nutrients, often leading to obesity and related health problems.

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Obesity

A severe form of overnutrition characterized by excessive body fat accumulation.

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BMI

Body Mass Index; a measure of body fat based on weight and height (kg/m^2).

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BMI Ranges

Categories of BMI values (underweight, healthy weight, overweight, obese) used in assessing nutritional risk and health.

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Health consequences of overnutrition

Chronic diseases like type 2 diabetes, hypertension, stroke, heart disease, cancer, joint problems, liver problems, breathing difficulties, & decreased mobility.

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Nutritional status

A person's state of health and well-being, including the adequacy of nutrients received.

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BMI (kg/m2)

Body Mass Index, a measurement used to assess body fat based on height and weight.

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Nutritional Status

The condition of the body regarding nutrient intake, indicating whether it is getting sufficient nutrients for good health and function.

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Underweight BMI

BMI below 18.5 kg/m2.

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Normal Weight BMI

BMI range from 18.5 to 24.9 kg/m2.

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Pre-obesity BMI

BMI range from 25 to 29.9 kg/m2.

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Obesity Class I BMI

BMI range from 30 to 34.9 kg/m2.

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Obesity Class II BMI

BMI range from 35 to 39.9 kg/m2.

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Obesity Class III BMI

BMI above 40 kg/m2.

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South Asian BMI

Body Mass Index criteria adjusted for South Asian populations, taking into account elevated risk of type 2 diabetes and heart disease associated with overweight/obesity in this group.

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South Asian Population Health Risk

South Asian populations have a heightened risk of developing type 2 diabetes and heart disease due to being overweight.

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Study Notes

Introduction to Food and Nutrition

  • Daily food choices impact health, positively or negatively.
  • Proper nutrition is essential for growth, development, and maintaining health throughout life.
  • Diet depends on production and distribution, and determines population health.
  • Key aspects studied include: basic terminology, nutrients, food groups, dietary recommendations, relationship between food, nutrition, and health, and BMI/Nutritional status.

Basic Terms Used in the Study of Food and Nutrition

  • Health: Defined by the WHO as "complete physical, social, and mental well-being," not just the absence of disease. Includes optimal growth and development, maintaining body structure and function, disease resistance, and tolerance to environmental factors.
  • Foods: Products of plant or animal origin providing energy and nutrients for body maintenance and repair.
  • Nutrition: The study of foods and nutrients; their actions, and social, economic, cultural, and psychological interactions with food and eating.
  • Nutrients: Chemical components of food providing energy, structural materials, and regulating agents.
  • Nutrient Requirements: Minimum amounts of nutrients needed to support normal function.
  • Nutritional Status: The individual's health influenced by and indicated by nutrient intake, metabolism, and levels.
  • Malnutrition: Undesirable nutrition resulting from insufficient, excessive, or imbalanced nutrient intake. Includes undernutrition (insufficient) and overnutrition (excess).
  • Phytochemicals: Non-nutrient plant compounds with biological activity promoting healthy function; considered part of functional foods.

Nutrients

  • Macronutrients: Carbohydrates, fats, and proteins, needed in large amounts.
  • Micronutrients: Vitamins and minerals needed in small amounts.
  • Carbohydrates: Major energy source (4kcal/g). Simple (glucose, fructose, sucrose, lactose) and complex (starches, glycogen). Dietary fiber (cellulose, gums, pectins) is a complex carb resistant to digestion.
  • Proteins: Complex molecules made of amino acids; 4kcal/g. Essential vs. non-essential amino acids. Animal vs. plant sources.
  • Fats: Concentrated energy source (9kcal/g). Saturated fats, unsaturated fats; fats are necessary for fat-soluble vitamins and some metabolic functions.
  • Vitamins & Minerals: Chemical compounds needed in small amounts for various bodily functions. Water-soluble vs. fat-soluble.
  • Water: Crucial for many body reactions, delivering minerals and nutrients, and removing waste.

Food Groups

  • Balanced diets consist of foods from five main groups for optimal nutrient intake.
  • Cereals & Grains: Rice, wheat, provide energy, some protein, some minerals, B vitamins, and fiber.
  • Pulses & Legumes: Beans, peas, lentils, provide protein, some fiber, and minerals.
  • Milk & Milk Products: Milk, cheese, yogurt, provide protein, calcium, and some vitamins.
  • Fruits & Vegetables: Wide variety, provide vitamins, minerals, dietary fiber, and phytochemicals.
  • Fats & Sugars: Butter, ghee, oils, provide energy and essential fatty acids, sugars provide energy.

Dietary Reference Intakes (DRIs)

  • Research standards for appropriate nutrient intake based on age, gender, and other factors.
  • Estimated average requirements (EAR): adequate for 50% of population.
  • Recommended dietary allowances (RDA): adequate for the majority of healthy people to meet daily needs. Values consider safety margins.

BMI & Nutritional Status

  • Body Mass Index (BMI): Measure reflecting weight relative to height to assess nutritional status and risk of health problems. Values indicate ranges for "normal weight", "underweight", "overweight", and "obesity”.
  • BMI values vary according to ethnicity and demographic considerations, so BMI values should be interpreted with appropriate considerations.

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