What nutrient is important in the transport of oxygen in blood and in muscle tissue and in energy transformation reactions?
a. Iron
b. Calcium
c. Thiamin
d. Vitamin C
e. Sodium
Question 2
Which of the following is a feature of vitamin E supplementation and physical activity?
a. Some studies indicate that vitamin E supplementation for 3 weeks protects against the development of sports anemia in women.
b. Some studies show that vitamin E in high doses seems to protect against exercise-induced oxidative stress whereas others show the opposite.
c. Some studies show that vitamin E supplements improve aerobic performance by 25-30 in endurance athletes competing outdoors in air-polluted environments.
d. Some studies show that high-dose vitamin E intake protects against premature oxidation of conjugated linoleic acid supplements, which serve as a unique fuel for strength athletes.
e. Some studies show that vitamin E is effective in reducing the occurrence of stress fractures in female but not male athletes.