Find out Why Ketogenic Diet for Women Is Healthy : Ketosis is a natural process that takes place in the body whenever fat is oxidized. The breakdown of fats takes place in the liver, and the resultant products are known as ketones. The body uses ketones as energy sources at the expense of glucose. You will always come across the term ketosis any time you will be looking for information about weight loss or diabetes. But what will you say ketosis is?