The purpose of this site is to collect lab research by medical doctors about herbs that are proven to treat illnesses and counter the false attacks on herbs by the medical industry and false claims by alternative medicine. I let the science tell the facts.
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1. "The only natural source of vitamin D2, or ergocalciferol, comes from certain mushrooms exposed to sunlight during their growth. However, almost all of the vitamin D2 available results from manufacturers forming the compound using ultraviolet irradiation of ergosterol compounds found in yeast. Although vitamin D2 traditionally has been used to fortify milk products as a preventive step against rickets, the National Institutes of Health, or NIH, points out that this form does not convert into calcidiol and calcitriol at the same rate as vitamin D3; most supplement manufacturers no longer use D2 in their products for this reason."





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