Estrogen has a protective effect on bone density by: a. increasing intestinal absorption of calcium b.

1. Estrogen has a protective effect on bone density by: a. increasing intestinal absorption of calcium b. decreasing calcium excretion in the urine c. facilitating calcium retention d. all of the above 2. Losses of iron may be increased in the athlete due to: a. iron loss in sweat b. iron loss by blood cells breaking during exercise c. iron loss due to tissue damage and myoglobin loss d. a and b only e. a, b, and c 3. Which two food groups if eaten in sufficient and varied amounts will likely to supply the B vitamin complex (thiamin, riboflavin and niacin)? a. grains and meats b. fruits and vegetables c. fruits and dairy d. vegetables are adequate; they contain the highest amounts of all B Vitamins 4. Which of the following conditions tend to produce extra free radicals in the body? a. cigarette smoking and environmental pollutants b. radiation and UV light c. hard exhaustive exercise d. a and b e. a, b, and c 5. Which nutrient is not an antioxidant? a. betacarotene b. vitamin K c. vitamin C d. vitamin E 6. If you wanted to increase the amount of antioxidants you could: a. eat more vegetable-derived fats and fruits b. eat more meat and milk c. get more sunlight exposure without using sun block d. eat more bread and meat