Explain three of the functions of vitamin E in the body, give the RDAs for a healthy adult, and then name three dietary sources that are rich in that substance.

QUESTION 1. Please define osteoporosis, and explain three of its important risk factors. Also, please describe three dietary strategies that we can employ in order to minimize risk for osteoporosis.

QUESTION 2. Please define the terms enzyme, coenzyme, and cofactor, and explain how the B complex vitamins fit into this system. Also, please name three specific B complex vitamins and describe their function.

QUESTION 3. Explain three of the functions of vitamin E in the body, give the RDAs for a healthy adult, and then name three dietary sources that are rich in that substance.

QUESTION4. Please explain how antioxidants can protect body tissues, then please name three micronutrients that have significant antioxidant function in the body, tell how much of these nutrients we should be consuming daily, and give two or three good dietary sources for each of these nutrients.

QUESTION 5. Please outline the general processes involved in regulating blood calcium levels and please explain how vitamin D is related to this system.

QUESTION 6. Please explain the role that iron plays in oxygen transport in the human body, and then describe three circumstances that can improve iron status and three that can diminish iron status.

QUESTION 7. Please define the following terms: tonicity, hypertonic, hypotonic, and isotonic and then explain how they relate to water balance in the body.

QUESTION 8. Please explain the physiological interactions between sodium and potassium, and explain the roles that these ions play in maintaining a healthy blood pressure.

QUESTION 9. According to what we have read and discussed about dietary supplements, what is your opinion of their use? Are they necessary? Are they safe? Can they be included in a healthy diet? Should they be included?