FAT - definition, sources , types and functions.pptx

FAT - definition, sources , types and functions

1. FAT Mrs.A.JEEVARATHINAM Assistant Professor, Department of Home Science, V.V.Vanniaperumal College for Women, Virudhunagar .

2. INTRODUCTION Fats, the richest source of dietary energy are organic compounds made up of carbon, hydrogen and oxygen. Each gram of fats provides 9 calorie. Fat is known to have three elements which include carbon, hydrogen, and oxygen. But, it has more amounts of carbon and hydrogen compared to oxygen, hence leading to nine calories per gram. Fat is made up of different types of fatty acids, some of which are necessary for health in small amount.

3. SOURCES

4. Types of Fats Saturated Fat It is responsible for bad cholesterol. They are found in most animal products like cheese, milk, meat and so on and hence one must limit the quantity of intake. Consuming saturated fat in large quantities is the most popular reason for heart diseases as it causes cholesterol to block the arteries. Monounsaturated fats Monounsaturated fats are healthy fats found in Avocados, Macadamia nuts, Peanuts, Olives and Olive oil. It plays a vital role in protecting the heart and also involved in supporting insulin sensitivity, fat storage, weight loss, and healthy energy levels.

5. Types of Fats Trans Fats Trans fats are also called as unsaturated fatty acids or trans fatty acids. These fats are obtained naturally in several foods such as beef, lamb, whole milk, cheese, cream, and butter are acquired from cattle. Trans fatty acids that one gets from vegetable oils also play a role in increasing the cholesterol levels. Polyunsaturated Fats Polyunsaturated fats are healthy fats, which are abundantly found in both plant and animal foods, such as vegetable oils, Walnuts, Flax seeds, salmon, etc. These fats include both Omega 3 and Omega 6 fats. Omega 3 helps in reducing inflammation, supports healthy hormone levels and cell membranes. Omega 6 fatty acids play an important role in supporting healthy brain and muscle functioning.

6. Functions of fats Provides energy. Keep the body warm. Protect internal organs. Helps body absorb vitamins A, D, E, and K through bloodstream. Produces hormones that help body to work properly. Serves as the storage substances for the body’s extra calories.