What aspects of the information on food labels are the most relevant to consumers who want to identify foods that contribute to bone health?
Utilizing the Nutrition Facts label to compare the calcium and protein content of foods would be beneficial to identifying significant food sources of both nutrients, which are critical to bone health. Both the calcium and protein content of foods are required components of food labeling. Foods can also include an FDA-approved health claim when appropriate. Health claims help consumers readily identify good sources of nutrients in food. A specific health claim for calcium approved by the FDA that can be found on packaging is as follows:
"Regular exercise and a healthy diet with enough calcium helps teens and young women maintain good bone health and may reduce their high risk of osteoporosis later in life.".
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Which of the following is a true statement regarding nutrient bioavailability?
a. Vitamin C improves the bioavailability of iron. b. Low levels of gastric acid production will reduce the absorption of vitamin B6. c. Niacin equivalents adjust for differences in bioavailability between forms of niacin. d. Folate must be bound to intrinsic factor to be absorbed.
The primary role of most of the B-vitamins is to
A) maintain acid-base balance. B) directly provide the body with energy. C) act as coenzymes. D) maintain and repair body tissues.
Riboflavin assists with antioxidant function through its role as a coenzyme for which enzyme system?
A. glutathione peroxidase B. alpha-ketoglutarate dehydrogenase C. succinate D. hexokinase
Which of the following elements is a major component of hemoglobin?
A) calcium B) sodium C) iron D) selenium