this post was submitted on 28 Mar 2025
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That's generally true. If you live in a northern climate vitamin D deficiency is very common and certain over the counter meds like omeprazole can impair vitamin absorption (b12 in the case of omeprazole) if taken long term. Supplementing other vitamins hasn't been shown to have any meaningful benefit.
I went to see a dermatologist in the Caribbean and she was saying that the vast majority of the people in the Caribbean have a vitamin D deficiency as well.
When it's hot people just avoid the sun as much as possible.
FWIW I was a vitamin d deficient Australian, our sun is extra cancerous so I make sure to cover up or avoid it. I've been taking 5000iu daily which has brought my levels up into the lower end of acceptable.