Human milk provides ________ of calories from protein.
A. 15% to 25%
B. less than 10%
C. 10% to 15%
D. more than 25%
Answer: B
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Which of the following describes the effect of vitamin A in foods?
a. Fast-food French fries are 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. To date, scientists have been unable to solve the problem of vitamin A deficiencies in developing countries. 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.
A medical researcher reads an article in "Today's Health-Conscious Woman" magazine about the benefits of using the phytochemical capsaicin to treat knee pain. She asks 10 people with arthritic knees to rub a cream that contains the phytochemical on their knee joints for two weeks. At the end of the two weeks, the researcher asks the subjects whether their knee pain improved, stayed about the same, or worsened during the treatment period. After collecting responses from the people, the researcher reports the results of her study during a popular TV show that is hosted by a doctor. Based on this information, which of the following statements is true?
A. The researcher reviewed scientific literature regarding the use of capsaicin to treat knee pain. B. The researcher subjected the results of her study to peer-review. C. The researcher did not divide the subjects of her study into control and treatment groups. D. The researcher used a standard scientific design for research involving human subjects.
Of the following foods, which is the best source of essential amino acids?
A. Grape juice B. Oat flakes C. Sunflower seeds D. Leaf lettuce
Which dietary assessment tool would most likely be appropriate for someone who needs to measure food portions and is highly motivated?
a. 24-hour recall b. food frequency c. food record d. diet history e. ASA24