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by Broken_Hippo
1710 days ago
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It would depend on individual ability to metabolize D3 and amount of outdoors sunlight and the extent that local food is fortified with D3 The issue is that I fairly far north. You can miss the entirety of daylight in December if you work first shift at a factory (there will be a glow of twilight as you go home). The sunlight we do get in the winter is of poor quality. I'm not even above the arctic circle - it gets worse up there with no direct sunlight. I'm not sure of the extent of food being fortified: I can't see where they've added it to the milk (for example). I could be wrong about this last bit. There is a lot of fish in the diet, but nonetheless, they recommend the general population take some vitamin D in the wintertime. |
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