Which of the following is a characteristic of vitamin A in foods?
a. Fast foods are generally considered good sources of vitamin A.
b. Arctic explorers who have eaten large quantities of polar bear liver have become ill with symptoms suggesting vitamin A toxicity.
c. Xanthophylls in certain vegetables can be converted to active vitamin A in the liver.
d. Chlorophyll in vegetables can be converted to active vitamin A in the intestinal cells.
e. Pregnant women should eat at least one ounce of beef liver per day to help ensure normal fetal eye development.
ANS: B
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The 2010 Dietary Guidelines for Americans recommend that Americans increase their intakes of all of the following except:
A. fruits . B. dark green, red, and orange vegetables. C. refined grains. D. seafood.
The sphincter muscle at the top of the esophagus is called
A. epiglottis. B. lower esophageal sphincter. C. upper esophageal sphincter. D. gastroesophageal sphincter.
James is preparing for a marathon. He has been maintaining a well-balanced diet. Two days before the race, he reduces his protein and fat intake and starts consuming more foods that are high on energy. He also reduces the intensity of his workouts and includes more rest in his daily regime. In this scenario, it is likely that James is using the technique of _____
A) interval training B) carbohydrate loading C) aerobic conditioning D) creatine conditioning
What model health-promotion program considers culture in combining social marketing and community-building strategies to encourage maintenance of healthy weight by becoming more physically active and eating nutritious foods?
a. Fare for All b. Sisters Together c. YMCA d. WIC e. SNAP