Fats

Fats: Fats are the combination of glycerol and 3 fatty acids.
                                 

 There are three types of fats.

(1) Saturated fats (2) Unsaturated fats

(3) Trans fats.

(1) Saturated fats: In saturated fats, all fatty acid chain has a single bond. Saturated

Fats usually solid at room temperature.

Ex: beef, mutton, chicken, egg, palm oil, dairy products etc.

(2) Unsaturated fats: In unsaturated fats, there are one or more double bonds in fatty acids chain. Unsaturated fats liquid at room temperature. Generally, unsaturated fats are of two types. (A) Monounsaturated fats  

                               (B) polyunsaturated fats

(A) Monounsaturated fats: In

monounsaturated fats, the fatty acid chain has only one double bond the highest amount of monounsaturated fats foods are,

Avocado, olive oil, sunflower oil, peanut oil ( groundnut oil ) etc.

(B) Polyunsaturated fats: 

               In polyunsaturated, fatty acids chain has more than one double bonds. There are 3 types of polyunsaturated fats. (a) omega 3 fatty acid (b) omega 6 fatty acid (c) omega 9 fatty acid.

Ex: walnuts, soybean oil, sunflower oil, fish, etc.

(3) Trans fats: Trans fats actually an unsaturated fat. Trans fats are present naturally in ruminants. But a large number of trans fats are made artificially with hydrogenation of vegetable oil in industries. These trans fats are used in packaged food, snacks, for frying fast food etc. These trans fats are actually prevented food from spoiling in a long time.

Which fats are useful and harmful to our body?

Saturated and trans fats both are harmful to our body. Both saturated and trans fats increase LDL cholesterol which causes coronary heart disease, type 2 diabetes, hypertension etc. But unsaturated fats protect from coronary heart disease. And decrease LDL cholesterol, and keep healthy to our body.