Verywell Health on MSN6mon
Symptoms of Vitamin D Deficiency: How Do You Tell?1,500 IU Age 1 to 3: 2,500 IU Age 4 to 8: 3,000 IU Age 9 and up: 4,000 IU Taking more increases the risk of toxic effects.
Historically, 400 IU (10 ug) of vitamin D was recommended for better health because it closely approximated the amount of vitamin D in a teaspoonful of cod liver oil. However, 800 to 1,000 IU is ...
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