What types of vitamin supplements can you make yourself?

I think if you eat parsley it contains just about every vitamin except D, and plenty of iron too. Easy to grow aswell.

Thiamine (Vit. B1) 0.1 mg 8%
Riboflavin (Vit. B2) 0.2 mg 13%
Niacin (Vit. B3) 1.3 mg 9%
Pantothenic acid (B5) 0.4 mg 8%
Vitamin B6 0.1 mg 8%
Folate (Vit. B9) 152 μg 38%
Vitamin C 133.0 mg 222%
Vitamin K 1640.0 μg 1562%

% is % of reccomended daily intake from eating 100 grams of raw parsley, see the wikipedia article: http://en.wikipedia.org/wiki/Parsley

@nisse – wow, good to know!

I imagine you can make some small snack using only parsley, a few other herbs and/or veggies, and some good tasting filler, to get much of what you need daily.

You can make Vitamin D anywhere! Well, anywhere there’s direct sunlight. Okay, enough of my silliness.

I have lots of rose hips on my land, but I have never tried processing them for personal consumption. I am sure it wouldn’t be hard to dry and ground.
If you have a mortar and pedestal that really helps for pulverizing, my wife picked one up at flea market relatively cheap that I use for lots of things.
Concentrating, or reducing high quality green tea is easy and is a powerful antioxidant that helps you lose weight.
Flax seed, as you probably know can be ground up and is effective especially when enriched with cottage cheese-see Dr. Budwig on Google for that.