Questions and Answers
What is the primary health effect of excessive sodium intake?
How much calcium do males aged 19-50 require daily?
Which of the following foods is a good source of non-heme iron?
What is a recommended practice to reduce sodium intake?
Signup and view all the answers
Which mineral is critical for the formation of hemoglobin?
Signup and view all the answers
What is the primary storage location of calcium in the human body?
Signup and view all the answers
What should individuals do before taking iron supplements?
Signup and view all the answers
What is the average daily sodium intake for most Americans?
Signup and view all the answers
Which of the following foods is highest in calcium per serving?
Signup and view all the answers
What can happen due to iron deficiency in the body?
Signup and view all the answers
What is a common health effect of vitamin A deficiency?
Signup and view all the answers
Which vitamin is essential for calcium absorption?
Signup and view all the answers
What is the recommended dietary allowance (RDA) of vitamin D for adults over 70 years?
Signup and view all the answers
Which mineral is specifically mentioned as being needed for the body to function?
Signup and view all the answers
What food source is rich in vitamin A?
Signup and view all the answers
What is a potential outcome of excess vitamin A intake?
Signup and view all the answers
What can result from a deficiency in vitamin D?
Signup and view all the answers
Which source is recognized as a good provider of vitamin D?
Signup and view all the answers
How does a deficiency in vitamin A impact the immune system?
Signup and view all the answers
What is the role of beta-carotene in the body?
Signup and view all the answers
Which of the following conditions can arise from vitamin D deficiency?
Signup and view all the answers
What is a common source of Vitamin E in the diet?
Signup and view all the answers
What role does Vitamin K play in the human body?
Signup and view all the answers
Which B vitamin is primarily involved in converting carbohydrates to energy?
Signup and view all the answers
What mineral is considered to be a trace mineral required by the body?
Signup and view all the answers
How might a sodium deficiency manifest in the body?
Signup and view all the answers
Which of the following foods is a good source of calcium?
Signup and view all the answers
What is a potential consequence of Riboflavin (B-2) deficiency?
Signup and view all the answers
Which vitamin is crucial for the formation of red blood cells and DNA synthesis?
Signup and view all the answers
Which of the following is NOT a function of Vitamin C?
Signup and view all the answers
Study Notes
Sodium
- Maintains fluid balance and assists in nerve impulse transmission.
- Influences muscle contraction and relaxation.
- Recommended intake is 1,500 to 2,400 mg/day; average American intake ranges from 2,300 to 6,900 mg/day.
- Excess sodium can lead to high blood pressure and fluid retention.
- Reduce sodium by eating fresh foods, limiting processed foods, and experimenting with seasonings.
Calcium
- The most abundant mineral in the body, with 99% stored in bones.
- Essential for bone health.
- Daily requirement for males and females aged 19-50 is 1,000 mg.
- High-calcium foods include yogurt, milk, fortified juices, and sardines.
Iron
- The most common nutritional deficiency worldwide.
- 70% of the body’s iron is in hemoglobin; essential for oxygen transport.
- Heme iron is found in animal products; non-heme iron is in plant products.
- Inefficient iron uptake may result from poor diet, malabsorption, or limited sunlight exposure.
Vitamin D
- Vital for bone health; aids calcium absorption.
- Deficiency can lead to osteomalacia or osteoporosis.
- Daily sunlight exposure of 10 minutes is beneficial; find in fortified milk, tuna, and salmon.
- Supplements may be necessary, but consult a doctor before use.
Vitamin E
- Crucial for the health of red blood cells, muscles, and tissues.
- Deficiency and toxicity are rare, but it can act as a blood thinner.
- Found in vegetable oils, whole grain cereals, and nuts.
Vitamin K
- Key for blood clotting and bone health.
- Primarily produced in the intestines.
- Dietary sources include leafy greens (spinach, kale) and cruciferous vegetables (cauliflower, broccoli).
Water-Soluble Vitamins
- Includes B vitamins (B-1, B-2, B-3, B-6, B-12, folic acid, pantothenic acid, biotin) and vitamin C.
- Thiamin (B-1) supports energy conversion; deficiency can cause fatigue and nerve damage.
- Riboflavin (B-2) aids metabolism; deficiency may lead to dry skin.
- Niacin (B-3) supports energy production; severe deficiency can cause dermatitis and dementia.
- Pyridoxine (B-6) involved in protein metabolism; deficiency can cause nervous system disorders.
- Cobalamin (B-12) is essential for nervous system health; found exclusively in animal products.
- Folic acid is vital for red blood cell formation; deficiency can result in anemia.
Vitamin C
- Aids bone health, blood vessel integrity, and iron absorption.
- Rare deficiencies are observed.
- Rich sources include citrus fruits, berries, and tomatoes.
Minerals
- The body requires 22 minerals, divided into major (e.g., calcium, sodium) and trace (e.g., iron, zinc) categories.
Fat-Soluble Vitamins
- Include vitamins A, D, E, and K.
- Excessive intake can lead to toxicity as they are stored in the liver and fat tissues.
Vitamin A (Retinol)
- Essential for vision, skin health, and bone maintenance.
- RDA is 900 micrograms for men and 700 for women.
- Sources include liver, eggs, and orange/yellow fruits and vegetables.
Vitamin D – "The Sunshine Vitamin"
- Crucial for the formation and maintenance of bones and teeth.
- Recommended intake increases with age; 5 mcg until 50, 10 mcg from 50 to 70, and 15 mcg for those over 70.
- Deficiencies are increasingly recognized as a health concern.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz explores the role of sodium in maintaining fluid balance, transmitting nerve impulses, and influencing muscle contractions. It also highlights the recommended daily intake versus average consumption, as well as the risks associated with excessive sodium intake. Test your knowledge on the health impacts of sodium!
