题目内容
Poor dietary intake of calcium is not likely to result in low blood calcium.
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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.
High phosphorus diet reduces Mg absorption,and low protein diet increased Mg absorption.
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