How might fruits and vegetables reduce the risks of some cancers?
Possible benefit has been attributed, in part, to nutrients and phytochemicals with antioxidant activity, as these substances may prevent or reduce the oxidative reactions in cells that cause DNA damage. In addition, phytochemicals may inhibit carcinogen production in the body, enhance immune responses that protect against cancer development, or promote enzyme reactions that inactivate carcinogens. The B vitamin folate functions in DNA synthesis and repair; thus, inadequate folate intakes may allow DNA damage to accumulate. Fruits and vegetables also contribute dietary fiber, which may help to protect against colon and rectal cancers by diluting potential carcinogens in fecal matter and accelerating their removal from the GI tract.
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An employee consistently calls in sick the day before a holiday. His Supervisor should:
a. discuss this with other managers b. telephone the employee to verify the illness c. schedule a counseling session with him d. file a letter of concern with the employee relations department
Some athletes take chromium supplements to
A) aid in delivering oxygen to working muscles during exercise. B) conserve glycogen stores and delay fatigue during exercise. C) increase muscle mass and strength and decrease body fat. D) increase the use of fatty acids during endurance exercise.
Despite advances in clinical and preventive medicine, children and adolescents in the U.S. have significant nutritional concerns
a. True b. False Indicate whether the statement is true or false
Christopher's lunch contains 121 grams of carbohydrate, 40 grams of protein, and 25 grams of fat. What percent of kilocalories (kcal) in this meal come from fat?
A. 19 percent
B. 26 percent
C. 34 percent
D. 42 percent