Scientifically speaking proteins are polymer chains that are made up of amino acids linked by peptide bonds. The enzymes known as proteases act during digestion to breakdown the proteins into smaller polypeptides to provide essential nutrition to the body. Proteins thus are essential nutrients for our human bodies and their functioning. They serve as a fuel source in the body and are also one of the building blocks of the body tissue. The proteins (as a fuel) contain 4 kcal per gram.
The human body needs protein for its growth and maintenance. Proteins are the second most abundant molecules found in human body second only to water. Proteins are suppliers of essential amino acids which the body cannot make and has to be supplied from food.
Proteins are thus very important for any individual; it must thus be included in our daily diets. Mentioned here are 5 food items high on proteins:
Beans make for a food item which is very rich in proteins and low in fat. They make for a good inclusion in daily diet. Beans are said to give as many as 20 grams of proteins per serving. Besides proteins, beans also have high fibres which help keep one feel full for hours.
Meat has been known to be one of the strongest sources of proteins. All types of meats are high on proteins though the exact amount of proteins may vary depending upon the type of animal, the cut of the meat etc. Though generally meat is high on protein and low on fat in comparison the preparation method of the meat may lead to variation in the calorie content.
Fish is again one of the food items very high in proteins. But just like meat, in fish also the amount of proteins contained depends on the part of fish that the individual is consuming. It also provides a mix of other nutrients.
Milk, cheese, eggs and yogurt etc. are the different types of dairy products all of which are a very good source of proteins. These are a good source especially for those who do not consume meat. One point to keep in mind is that some of the dairy products may be high on fat content and calories as well.
Nuts are also a good source of proteins. Though the amount of proteins in one serving of nuts may be lower than that in fish or meat, it is still a good source of proteins. Since the different nuts have high amounts of fats their consumption must be monitored.