The Liver Files - The Weston A. Price Foundation
2021-3-5 · A study from Switzerland looked at blood levels of vitamin A in pregnant women and found that a dose of 30,000 IU per day resulted in blood levels that had no association with birth defects (International Journal of Vitamin and Nutrition Research 1998 68(6):411-6). Textbooks on nutrition written before the Second World War recommended that ...
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