1. Fats promote absorption of fat soluble vitamins like vitamin A, D, E and K. Patients of cystic fibrosis often absorb fat poorly and are at-risk for fat-soluble vitamin deficiency. Water miscible preparations of these vitamins are therefore prescribed.

2. Fats contribute to texture, flavour; taste and increases palatability of the diet. They provide 'an effective medium of heat transfer in deep-frying and transfer of flavours.