题目内容
Bone resorption occurs at a lower rate than bone synthesis after age 30.
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Poor dietary intake of calcium is not likely to result in low blood calcium.
Limited exposure to UVB reduces the skin’s ability to synthesize vitamin D.
The average daily consumption of Phosphorus by adults is 1,200 to 1,600 milligram.
Adults who lack vitamin D are more likely to develop osteoporosis or fractures.
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