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OP here. I'll give a qualified yes. It's hard to actually know which action I take has the most effect. Vitamin D, bright lights, exercise all play a role.

OP here. I'll give a qualified yes. It's hard to actually know which action I take has the most effect. Vitamin D, bright lights, exercise all play a role. I've found it's important to try everything and hope for the best. If I were to pick just one thing to do though, it would be the bright lights in the morning. I know for sure that those work. Not only for myself, but for many other people who have given it a try.

ozh 13y ago
Yes, fixing your Vitamin D level gives a very effective boost, however it is absolutely not harmless to consume too much vit D as the article implies. More: http://en.wikipedia.org/wiki/Hypervitaminosis_D http://en.wikipedia.org/wiki/Hypervitaminosis_D
- teach 13y ago
  Hypervitaminosis D is incredibly rare. Taking 1000 IU per day ought to be harmless for literally everyone. Even 10,000 IU per day is WAY below toxicity.
  - simonhughes22 13y ago
    You are missing the point. Above a certain level, the negative side effects start out weighing the positive affects. So just because something is not close to toxicity, does not mean it is actually having a net benefit on your health. With vitamins, take the recommended dosage, or preferably slightly less, as it is likely you are getting at least something from your diet, not matter how poor. Anything above that is likely to start having negative effects that start to outweigh any benefits. Most adults get sufficient vitamins and minerals from their diet, even a poor western diet. Vitamin D however, is the exception if you don't get enough sun.
    - teach 13y ago
      I'm not talking about vitamins in general; I'm talking about vitamin D and how embarrassingly low the U.S. RDA is. There are a great many Americans who would see immense benefit by taking (say) 1,000 to 2,000 IU of vitamin D per day. And I feel pretty confident there are no people for whom an extra 2,000 IU would be negative.

ozh 13y ago

Yes, fixing your Vitamin D level gives a very effective boost, however it is absolutely not harmless to consume too much vit D as the article implies. More: http://en.wikipedia.org/wiki/Hypervitaminosis_D http://en.wikipedia.org/wiki/Hypervitaminosis_D

teach 13y ago
Hypervitaminosis D is incredibly rare. Taking 1000 IU per day ought to be harmless for literally everyone. Even 10,000 IU per day is WAY below toxicity.
- simonhughes22 13y ago
  You are missing the point. Above a certain level, the negative side effects start out weighing the positive affects. So just because something is not close to toxicity, does not mean it is actually having a net benefit on your health. With vitamins, take the recommended dosage, or preferably slightly less, as it is likely you are getting at least something from your diet, not matter how poor. Anything above that is likely to start having negative effects that start to outweigh any benefits. Most adults get sufficient vitamins and minerals from their diet, even a poor western diet. Vitamin D however, is the exception if you don't get enough sun.
  - teach 13y ago
    I'm not talking about vitamins in general; I'm talking about vitamin D and how embarrassingly low the U.S. RDA is. There are a great many Americans who would see immense benefit by taking (say) 1,000 to 2,000 IU of vitamin D per day. And I feel pretty confident there are no people for whom an extra 2,000 IU would be negative.