Question

Why won't a fat–soluble vitamin dissolve in water

Answer 1

small organic molecules will not dissolve in water cannot be synthesized by body (except vitamin D) supplements packaged in oily gel caps excesses can cause problems since fat-soluble vitamins are not excreted readily

Answer 2

Fat won't dissolve in water due to the fact that fat is a lipid. Lipids do not have charge, meaning they are non polar. Water does have charge so they do not attract one another. Like things dissolve in like things.