Function Of Protein
Protein is crucial to good health.
In fact, the name comes from the Greek word proteos, meaning “primary” or “first place.”
Proteins are made up of amino acids that join together to form long chains. You can think of a protein as a string of beads in which each bead is an amino acid.
There are 20 amino acids that help form the thousands of different proteins in your body.
Proteins do most of their work in the cell and perform various jobs.
Here are important functions of protein in your body.
(agrilearner)Repair and maintainance
Protein is termed the building block of the body. It is called this because protein is vital in the maintenance of body tissue, including development and repair. Hair, skin, eyes, muscles and organs are all made from protein. This is why children need more protein per pound of body weight than adults; they are growing and developing new protein tissue.
Protein is a major source of energy. If you consume more protein than you need for body tissue maintenance and other necessary functions, your body will use it for energy. If it is not needed due to sufficient intake of other energy sources such as carbohydrates, the protein will be used to create fat and becomes part of fat cells.
Protein is involved in the creation of some hormones. These substances help control body functions that involve the interaction of several organs. Insulin, a small protein, is an example of a hormone that regulates blood sugar. It involves the interaction of organs such as the pancreas and the liver. Secretin, is another example of a protein hormone. This substance assists in the digestive process by stimulating the pancreas and the intestine to create necessary digestive juices.
(agrilearner)Enzymes are proteins that increase the rate of chemical reactions in the body. In fact, most of the necessary chemical reactions in the body would not efficiently proceed without enzymes. For example, one type of enzyme functions as an aid in digesting large protein, carbohydrate and fat molecules into smaller molecules, while another assists the creation of DNA.
Transportation and Storage of Molecules
Protein is a major element in transportation of certain molecules. For example, hemoglobin is a protein that transports oxygen throughout the body. Protein is also sometimes used to store certain molecules. Ferritin is an example of a protein that combines with iron for storage in the liver.
(agrilearner)Protein forms antibodies that help prevent infection, illness and disease. These proteins identify and assist in destroying antigens such as bacteria and viruses. They often work in conjunction with the other immune system cells. For example, these antibodies identify and then surround antigens in order to keep them contained until they can be destroyed by white blood cells.
Source of protein
Whole eggs are among the healthiest and most nutritious foods on the planet.
They are loaded with vitamins, minerals, healthy fats, eye-protecting antioxidants and brain nutrients that most people don’t get enough of.
Whole eggs are high in protein, but egg whites are almost pure protein.
Protein content: 35% of calories in a whole egg. 1 large egg has 6 grams of protein, with 78 calories.
Almonds are a popular type of tree nut.
They are loaded with important nutrients, including fiber, vitamin E, manganese and magnesium.
Protein content: 13% of calories. 6 grams per ounce (28 g), with 161 calories.
Other High-Protein Nuts
Pistachios (13% of calories) and cashews (11% of calories).
Chicken breast is one of the most popular protein-rich foods.
If you eat it without the skin, the majority of calories in it come from protein.
Chicken breast is also very easy to cook, and tastes delicious if you do it right.
Protein content: 80% of calories. 1 roasted chicken breast without skin contains 53 grams, with only 284 calories.
Oats are among the healthiest grains on the planet.
They are loaded with healthy fibers, magnesium, manganese, thiamin (vitamin B1) and several other nutrients.
Protein content: 15% of calories. Half a cup of raw oats has 13 grams, with 303 calories
Cottage cheese is a type of cheese that is very low in fat and calories.
It is loaded with calcium, phosphorus, selenium, vitamin B12, riboflavin (vitamin B2) and various other nutrients.
Protein content: 59% of calories. A cup (226 g) of cottage cheese with 2% fat contains 27 grams of protein, with 194 calories.
Other Types of Cheese That Are High in Protein
Parmesan cheese (38% of calories), swiss cheese (30%), mozzarella (29%) and cheddar (26%).
6. Greek Yogurt
Greek yogurt, also called strained yogurt, is a very thick type of yogurt.
It tastes delicious, has a creamy texture, and is high in many nutrients.
Protein content: Non-fat Greek yogurt has protein at 48% of calories. One 6-ounce (170-gram) container has 17 grams of protein, with only 100 calories.
Just make sure to choose one without added sugar. Full-fat Greek yogurt is also very high in protein, but contains more calories.
Regular full-fat yogurt (24% of calories) and kefir (40%).
Milk is highly nutritious, but the problem is that a huge percentage of the world’s population is intolerant to it.
However, if you tolerate milk and enjoy drinking it, then milk can be an excellent source of high-quality protein.
Milk contains a little bit of almost every single nutrient needed by the human body and can provide several impressive health benefits.
It is particularly high in calcium, phosphorus and riboflavin (vitamin B2).
Protein content: 21% of calories. 1 cup of whole milk contains 8 grams of protein, with 149 calories.
Broccoli is an incredibly healthy vegetable, loaded with vitamin C, vitamin K, fiber and potassium.
Broccoli is also high in various bioactive nutrients believed to help protect against cancer.
Calorie for calorie, it is very high in protein compared to most vegetables.
Protein content: 20% of calories. 1 cup (96 grams) of chopped broccoli has 3 grams of protein, with only 31 calories.
The recommended daily intake (RDI) for protein is 46 grams for women and 56 grams for men.
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