What does fat souble mean?

Answer 1

I'm assuming that meant "fat soluble" and it's a typo in the question?

Fat-soluble basically refers to the ability of a nutrient to dissolve in fat as opposed to those which dissolve in water (water-soluble). In nutrition we usually ascribe this term to the solubility of nutrients, most oftenly vitamins, in the bloodstream.

All vitamins are either water soluble or fat soluble. Fat-soluble vitamins cannot be absorped in water and because of this they need the availability of bile from the lymphatic system to enable them to dissolve in the blood stream.

Fat soluble vitamins: A,D,E, and K.

water soluble vitamins: B's and C.

Fat soluble nutrients, unlike water soluble nutrients, don't need to be consumed with the same regularity because they can be stored in adipose tissue (fatty layers under skin) and in the liver.

I hope this has shed some light on your question, if I can help further just holler.