Hic! Says she with a glass of red in hand! Goodbye Dry January!
Well I agree mostly with CLKD - before taking any supplements important to attend to diet first because that's is where you will get pretty well all you need to function well, especially with a bit of judicious tweaking depending on whether you are deficient in anything. Dr Currie on this site recommends this too.
Lots and lots of a great variety of fresh fruit and vegetables, nuts, pulses grains and fish, along with adequate dairy and limited red meat - prepare your food from scratch - and you can't go wrong.
Supplements - the best (most natural) ones would be those that are just perhaps concentrates closely related to the food they are from with nothing much done to them - so fish oils or similar, juices etc and sometimes lots of nuts eg almonds.
Those who bleed a lot may benefit from extra iron - now and again (every few days) I take a little Floradix liquid herbal iron tonic which is extracted from plants. Ditto pure cod liver oil from a bottle (not the capsules which have vitamins added), although probably don't need this as eat a lot of fish (but less in winter!), I don't eat margarines, spreads or cereal with added vitamins - just butter olive oil and muesli or oats or similar.
Also now and again I pop a calcium and Vit D tablet but I really don't think I need this because I'm pretty sure I will get enough of this from food.
Hurdity x