Answer: bile
<span>If you have a problem digesting fats, you have a problem with your bile. Bile is excreted by the liver and stored in the gallbladder for later use. It helps break down the fats and aids in the absorption of fat-soluble vitamins. You will have trouble digesting fats if you are running deficient in bile.</span>
The study of statistics such as births, deaths, income, or the incidence of disease, which illustrate the changing structure of human populations.
