I take fish oil because I really don’t care for fish.
I’ve taken a multivitamin off and on. But for most people a balanced diet provides all the benefits of vitamins. Vegans (and to a lesser degree, vegetarians) do have to worry about certain dietary needs.
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Ginko is a placebo (except perhaps in those with dementia), but benign (as long as it’s actually real Ginko, which is a huge risk with Chinese manufactured “herbal supplements”) Of course it shouldn’t be taken by those with blood circulation disorders or pregnant women.