Which of the following substances is a provitamin or a precursor for a vitamin?
A. Alpha-tocopherol
B. Lecithin
C. Beta-carotene
D. Acetyl-CoA
Answer: C
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Brittany and Richard have noticed that their friend Mandy has lost a significant amount of weight from the fall to the spring semester. People are starting to comment on how thin she looks. Brittany has noticed that Mandy is only eating an orange for breakfast, a small bowl of salad with no salad dressing and a small piece of grilled chicken for lunch, and a cup of plain yogurt for dinner
Richard has been going to the gym with Mandy most days of the week. He enjoys lifting free weights, and Mandy usually runs on the treadmill for 45 minutes and then does 15 minutes of core exercises. In addition Mandy has shared with Brittany that she has not had her menstrual period for 4 months. Mandy has also expressed that she is frustrated because people are making comments about how thin she looks and consequently has not gone to as many parties or social gatherings because she feels so uncomfortable. What should Brittany and Richard do to help Mandy? A) Gather resource on eating disorders and talk to Mandy about their concern for her health and well being. B) Ignore the fact that she is struggling with weight issues. C) Encourage her by complimenting her body and will power to lose so much weight. D) Discourage her from working out and eating so poorly.
Where in the body is alcohol absorbed?
A) The small intestine B) At a site near the brain C) The stomach D) The large intestines E) a, c
Nutritional epidemiology ____
a. is a fairly new area of study
b. focuses on the role of Western diet and chronic disease
c. always utilizes controlled, clinical trial protocols
d. currently focuses on deficiency diseases
Elemental iron is composed of _____ atoms
a. at least two different types of b. no more than two different types of c. no more than four different types of d. several of the same