1. PROTEINS

2. What are Proteins ?
Proteins are essential in everybody's diet. They are known as Building blocks of life.
Proteins are complex substances found in many foods and are made up of thousands of small units called AMINO ACIDS.
They constitute 75% of the body mass and are present in each and every part of the body . Proteins are the carriers of oxygen in the blood and energy source for all the chemical reactions in the body.
Proteins are one of the most vital substances required by the body to function properly.

3. Use of proteins
Proteins are required for the structure, function, and regulation of the body's cells, tissues, and organs, and each protein has unique functions.
It is Key to muscle building and development. Proteins are constantly being broken down in our bodies.
Protein plays a key role in food intake regulation through satiety related to diet-induced thermo genesis.
Protein also plays a key role in body weight regulation through its effect on thermo genesis and body composition.

4. Types of Proteins
Complete Protein from animal sources, such as meat and milk, is called complete, because it contains all nine of the essential amino acids in the right balance.
It is also known as Animal protein.
Incomplete Protein Most vegetable protein is considered incomplete because it lacks one or more of the essential amino acids.
It is also known as Plant proteins .

5. Animal sources such as meat and milk
Complete Protein
Animal sources
such as meat and milk
Incomplete Protein
Grains, cereals, nuts, or seeds can be eaten together with dried beans, dried peas, lentils, peanuts or peanut butter.

6. Requirements in diet
Approximately 10-15% of total daily energy intake should be consumed as protein. Protein needs for sedentary adults average about 50 grams. Growth, pregnancy, lactation, and exercise increase protein needs

7. Deficiency due to lack of Proteins
Caused
Symptoms
Prevention
In infants, common in poor countries
Shrivelled look,
Ribs become prominent
Limbs become very thin.
Protein rich diet
MARASMUS

8. Kwashiorkor Caused in Symptoms Prevention
Small children in the age group of 1-3 years.
Stunted growth,
Bulging eyes,
Long curved thin legs,
Dark skin, Dull hair .
By giving high protein diet to the patient
Kwashiorkor

10. Diseases caused by excess intake
Certain organs are responsible for getting rid of the protein--namely the kidneys and liver.
The more protein we eat, the harder the kidneys and liver have to work to excrete the protein. The result of overuse of these organs is obvious premature wear and tear.
Excess protein makes the body more acidic, and these acids accumulate in the joints causing arthritis and gout.

11. Animal protein is hard to digest so it is hard on the digestive system causing digestive problems.
Animal protein is strongly associated with heart disease; no, not just the fat and cholesterol, but also the animal protein itself.
Animal protein is associated with many kinds of cancers, such as breast cancer, prostate cancer, colon cancer, and pancreatic cancer.

12. How to cook to preserve proteins
Cooking is something which has the capacity of altering the nutritional values of the food .
We usually cook our food because it not only satisfies our taste buds, but also makes the food easy to digest.
While cooking the protein based ones, great care is needed.
To avoid the extremities in cooking, which may either be harmful or result in the loss of protein content in the food. 

13. Serve Raw
Grilling
Baking or
Boiling
Stir
Frying
Steaming
Pressure
Cooking

14. Boiling
Raw Food
Steaming
Stir Frying

15. Nutritive value Protein Denaturing, or Cooking :-
When the molecules of protein in food are "stressed" by the heat of cooking, the process is called protein denaturing. There are physical and chemical changes to the structure of the protein as it is being cooked, some of which are beneficial and others that are not.

16. Effects of Heat Heat actually changes the structure of amino acids
Overcooking creates chemical changes that can alter or destroy protein in plant and animal tissue.
Excess heat breaks down proteins, causing them to lose essential amino acids and up to 50 percent of their vitamins and minerals.
On the other hand, some foods should never be eaten raw.
Meat and poultry, in particular, and fish should be cooked to prevent infection harmful bacteria.

17. Thank YOU