Protein Foods are polymer chains made of amino acids linked together by peptide bonds. Protein and carbohydrates contain 4 kcal per gram as opposed to lipids which contain 9 kcal per gram.
Amino acids can be divided into either essential amino acids or non-essential amino acids. The essential amino acids, which must be obtained from food sources, are leucine, isoleucine, valine, lysine, threonine, tryptophan, methionine, phenylalanine and histidine. On the other hand, non-essential amino acids can be made by the body from other amino acids. The non-essential amino acids are arginine, alanine, asparagine, aspartic acid, cysteine, glutamine, glutamic acid, glycine, proline, serine, and tyrosine.
In nutrition, protein foods are broken down in the stomach during digestion by enzymes known as proteases into smaller polypeptides to provide amino acids for the body, including the essential amino acids that cannot be biosynthesized by the body itself. Thus, protein foods from one’s diet should provide both essential and non-essential amino acids for protein synthesis.
Most animal and certain vegetable protein foods are considered complete protein foods with a full complement of essential amino acids in adequate proportions. People who avoid animal products may practice protein foods combining to get the essential amino acids in their diet.
Protein foods functions in body
Protein is a nutrient needed by the human body for growth and maintenance. Aside from water,it is the most abundant molecule in the body. Protein foods are found in all cells of the body and is the major structural component of all cells in the body, especially muscle. This also includes body organs, hair and skin. Proteins also are utilized in membranes, such as glycoproteins. When broken down into amino acids, they are used as precursors to nucleic acid and vitamins. Hormones and enzymes are also formed from amino acids in which they help regulate metabolism, support the immune system and other body functions. Finally, protein foods are needed to form blood cells.
Protein foods function in exercise
Protein foods are one of the key nutrients for success in terms of sports. They play a major role in the response to exercise. Amino acids are the building blocks of protein ,which are used for building new tissue, including muscle, as well as repairing damaged tissues. however they only provide a small source of fuel for the exercising muscles, being used as fuel typically only when carbohydrates and lipid resources are low.
Sources of Protein foods
Protein foods, like milkshakes made from protein powder (center) and milk (left), are a common bodybuilding supplements.
There are many different sources of protein ranging from whole protein foods (such as milk, meat, fish, egg, and vegetables) to a variety of protein powders (such as casein, whey, egg, rice and soy). Protein powders are processed and manufactured sources of protein. Protein powders may provide an additional source of protein for exercising muscles. The type of protein is important in terms of its influence on protein metabolic response and possibly on the muscle’s exercise performance. The different physical and/or chemical properties within the various types of protein may affect the rate of protein digestion. As a result, the amino acid availability and the accumulation of tissue protein is altered because of the various protein metabolic responses.
Acne Program – Step 9 Protein Foods and Other Foods to Eat
Eating the right kind of food is what can give you a strong immune system and help you prevent sickness and all kinds of skin blemishes including acne.
Here are some of the foods that can help you overcome the acne on your face or throughout your body.
Eating excess meat is harmful to your health. Eating too much meat, more than 2-4 ounces per day, has been found to contribute to narrowing of the arteries.
If you do physical labor and are involved in a lot of movement in your work, then you should eat more than 2-4 ounces of protein per day. Just make sure that the meat has a minimum of additives and preservatives.
Remember, meat is high in saturated fat, which blocks the activity of EPA and DHA, which produce prostaglandin and control the activity of your hormones.
Meat and bread is a big contributor to creating constipation. Meat is difficult to digest and many times it will get into the colon partial digested. This condition benefits the bad bacteria and allows them to dominate the colon and create constipation.
Because meat and bread have little fiber, they move slowly in the colon, which leads to constipation and eventually to some type of colon inflammation.
Bad bacteria, decaying meat and other undigested food contribute to the build up of toxic matter in the colon. This is the type of condition you should try to avoid, if you have acne. You need fecal matter in the colon to move regularly and out the rectum, otherwise, toxic matter will build up and end up in your blood stream
Here are the grains you should be eating:
- Brown rice – contain many amino acids that help rebuild skin tissue
- Whole grains – contain folic acid, magnesium, and vitamin E, B vitamins, minerals, and fiber
- Oats – use them in the morning with honey or raisins. Oats have an anti-inflammatory effect on the skin and help to keep you regular.
Seeds and nuts
- Almonds – Almonds contain protein, the B vitamins, calcium, iron, potassium, magnesium, and phosphorus. Use them as a snack. These small nuts help to build muscles and tissue.
- Flax seeds – These seeds are known for containing plenty of omega 3 oil, an essential oil for life. They also contain fiber when used ground up and put into smoothies. Omega 3 is also an anti-inflammatory oil, which is good for acne.
- Pecans – This is one of the good nuts to eat. It contains Vitamin A, B’s, C, calcium, iron, phosphorus, and potassium. Use them as a snack.
- Pine nuts – these nuts also one of the best to eat. They contain vitamin A, C, B’s, protein and iron.
- Sesame seeds – They are high in calcium, phosphorus, and potassium. They are helpful in relieving various skin diseases such as acne by reducing the swelling.
- Sunflower seeds – These seeds should be used as a snack. They are high in protein, calcium and vitamin A. They provide nutrients for building the whole body and are good for dry skin.
All of these nuts and seeds should be eaten raw. Heating and other processing will kill the life force of the nut or seed and also reduce the quantity of the vitamins and minerals.
Eat protein foods like nuts and seeds as snacks, sesame seeds, sunflower, and flax seeds can be put directly into your blender as you make your smoothies