Vitamin D & Tuna

[Effie]

It looks like I'm not getting enough vitamin D from the food I'm eating, according to fitday.com I looked up foods that will give me more vitamin D, and I found this fun fact out:

A 6.5 ounce can of tuna packed in water provides 0% Vitamin D.
A 6.5 ounce can of tuna packed in oil provides 94% Vitamin D.

Is that outrageous or what? According to fitday.com, most oil (sunflower, safflower, corn, vegetable, peanut, olive, etc.) by itself provides 0%. So where's all that Vitamin D in the tuna come from? Fresh, raw tuna also provides 0%. Is fitday wrong, or is there some magical properties of canned tuna in oil that I'm missing?

Edited to add: "Ten to fifteen minutes of sun exposure at least two times per week to the face, arms, hands, or back without sunscreen is usually sufficient to provide adequate vitamin D." - from some website

[Effie]

Ahhh, I think I figured it out.

The oils with a lot of vitamin D are Cod Liver oil, and Sardine Oil. I've never paid attention to the kind of oil that tuna is packed in. Come to think of it, I've never even had tuna packed in oil, always in water.

Sunshine, on my shoulders, makes me happy!

[not2late]

There's a book called The UV Solution by Michael Hollick, MD. It's very informative about vitamin D and how to get it safely from sun exposure.