I take any letter of the alphabet I can get my hands on but definitely B-Complex, B12 (because I use metformin for life extension), C (not needed but why not), D, magnesium (sometimes), zinc (sometimes), DHEA, (no longer legal?) and cranberry extract.

I take daily dose of metformin for anti aging but these can cause a vitamin B12 deficiency so therefore I supplement B12 but would not take, or recommend taking, B12 when not taking metformin.

I usually get my vitamins in the Netherlands when I'm on leave because in Portugal, supplements come at a premium.

Metformin is only available on prescription in the Netherlands so get those OTC in Portugal. (cheap)