Fats, which consist of a wide group of compounds, are usually soluble in organic solvents and insoluble in water. Chemically, fats are usually known as triesters of glycerol and fatty acids (triester = one of three ester chemical groups).
Fat is one of many essential nutrients. Dietary fat is the most “fattening” nutrient we eat. It provides 9 calories, units of energy, per gram.Carbohydrates and proteins each provide 4 calories per gram.
When dietary fat is digested, fatty acids are produced. One fatty acid, the essential linoleic acid, helps us absorb fat-soluble vitamins and minerals. It is also important for healthy skin and blood pressure regulation.