Ramon Was a Participant in a Clinical Study to Determine

question 34

Multiple Choice

Ramon was a participant in a clinical study to determine how much vitamin D is required by healthy humans. During the study, Ramon consumed only a formula diet that was nutritionally complete, except it did not contain vitamin D. Within a few weeks, he developed signs and symptoms of vitamin D deficiency. At that point, researchers gave 5 mcg vitamin D to Ramon each day for a week, but his signs and symptoms of the deficiency remained. The next week, the scientists added 5 mcg vitamin D to his diet, so that his formula contained 10 mcg of the vitamin. By the end of that week, Ramon reported feeling much better. Based on this information, the researchers concluded that Ramon's

• A) RDA for vitamin D was 5 mcg, plus a margin of safety amount of 5 mcg.
• B) AMDR for vitamin D was between 5 and 10 mcg.
• C) daily required allowance for vitamin D was about 10 mcg.
• D) requirement for vitamin D was 10 mcg.

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Definitions:

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