Major uses of proteins are: -• It is useful in producing amino acids which is needed by the body cells to repair the muscles and also to produce new proteins.• It is helpful in mending the bones, blood, organs and skin.• They are used by the body to heal wounds and cuts.• Also helps in clotting of the blood.• Proteins also help in producing the hormones. Besides this they also build enzymes and other antibodies which are required by the body to control many chemical processes.So various kinds of sources of protein supplements and food that is needed by the body are: -1.) Amino acids are generated from the foods which are rich in proteins.2.) Food items which contain protein amount in large amount are:• Eggs• Milk• Meat3.) Animal proteins are considered superior than the plant proteins as they can be easily digested by the body.4.) Plant proteins are derived from grains and legumes. Others sources of proteins are: -• Cheese • Soya milk• Fish• Red meat• Nuts• Yogurt• Tofu• Beans• Peanut butter• Lean meat• Lentils5.) Food items like pizza, cheese sandwich, macaroni and tuna fish sandwich are rich sources of proteins.Daily requirement of protein supplements.Proteins supplements are needed for the process ‘Gluconeogenesis’. In this intake of food is less and body energy is needed to convert proteins to carbohydrates. An adult requires about 60 grams of proteins everyday at an average. But patients suffering from cancer, bariatric, renal, and who had undergone surgery need extra amount of proteins.Protein supplements available in the form of protein powder contains good amount of amino acids and peptides and hence improves the digestion process. Whey proteins are produced from milk when it is converted to cheese. Proteins shakes can be made by mixing proteins powder with juice, fruits, ice and milk. ‘Ben protein’ is the best example of this.Liquid proteins can be produced from collagen hydrolysate and fruit enzymes. This type of hydrolyzed protein can help in improving the absorption. This type of protein supplements can provide a high dose of proteins in a one dose. Some the examples of liquid proteins supplements are:• Pro-stat• Proteinex• IsoPure