So, my question is vitamin D alone, or in a multi vitamin?
I really don't like taking pills (even vitamins), and can't stand the taste/texture of gummies (my husband and kids don't think gummies are the best. When we had them on melatonin gummy form hubs and kids all said they could tell a difference when we ran out had to use pill form one night. The pills worked for all of them better than the gummies.)
About a year (maybe 2) ago I was making myself take a multi vitamin and what a huge difference it made! But it was a granddaddy of a horsepill, I hated swallowing (but made myself). But when it came time to get more, I learned the formula was changed and the reviews went down significantly so I stopped buying it, and have yet to find a multi I would be happy with (budget friendly and readily available in store, I'm not an online shopping fan).
My recent blood test came back good for everything the Dr was looking for/at, except he said my D levels are low and recommended taking a D supplement.
As far as light goes, I have heard a lot of positive things about "happy light therapy". Not that it increases D levels, but that the light therapy can increase serotonin, boosting a feel good mood.