Vitamin D is a fat soluble vitamin and can be stored in your body. Your body manufactures Vitamin D from sunlight on exposed skin; at least 20 minutes a day is recommended (It’s called sunshine Vitamin D). I think few of us are able to get 20 minutes of sunshine every day so you may want to consider supplementation. The RDA for Vitamin D is 400IU’s and has been for a long time. Research has shown that people with heart trouble are extremely low in Vitamin D so now doctors are recommending much larger amounts, sometimes as much as 4000IU’s, not just for people who already have heart trouble but as a preventative. When I take 1000IU’s of Vitamin D, I seem to have more stamina. I don’t feel as good taking 2000IU’s so 1000IU’s is my limit. Here’s my antidote for gray day depression. I take a Vitamin A & D combo and it does seem to help me and other people whom I’ve told to brighten up on a gray day. A lot of manufactured food is fortified with Vitamin D; milk for example. The vitamins used by manufacturers are synthetic and poorly absorbed and used by your body. You may not be getting adequate, absorbable Vitamin D from your diet. Here’s one you can absorb.
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