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Serious Side Effects of Vitamin B12? Why B12 Is One of the Safest Nutrients Around The reason for its excellent tolerability comes down to chemistry: because B12 is water-soluble, your body can't stockpile it in tissue the way it does with fat-soluble vitamins scientific research https://lookaside.fbsbx.com/lookaside/crawler/media/?media_id=159062773535186 Size:Buy 3, Get 1 Free

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