Doesn't it depend which vitamin? They aren't all water-soluble, so some may not add any value at all to your urine!
Anyway, I reckon Vitamin D is the only one that might be worth taking as a supplement, if you are at a high latitude, especially if you have darker skin.
My impression is there's a bit of expert disagreement about whether the bigger problem is too much sun causing skin cancer or too little causing Vitamin D deficiency.
Anyway, I reckon Vitamin D is the only one that might be worth taking as a supplement, if you are at a high latitude, especially if you have darker skin.
My impression is there's a bit of expert disagreement about whether the bigger problem is too much sun causing skin cancer or too little causing Vitamin D deficiency.