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Protein is the macronutrient needed for building muscle mass and facilitating many chemical reactions in the body. Two other macronutrients, fats and carbohydrates, are equally important. Proteins are composed of amino acids. While the human body can produce some amino acids, others must come from food. The nine amino acids we cannot produce naturally are known as the nine essential amino acids. They are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine. The average person requires about 25% of their daily calories come from protein.

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Black Beans

Black beans are a fiber- and protein-rich source of carbohydrates. 100 grams of beans provides 21.6 grams of protein, making them a great part of any healthy diet. In general, legumes are packed with iron. Additionally, black beans are a good source of magnesium, thiamin, potassium, and folate. Folate and iron work together to support the production of red blood cells and improving blood flow, while folate plays an integral role in preventing neural tube defects during pregnancy. Folate can also help lower the risk of heart disease, stroke, and peripheral artery disease.

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Eggs

One of the best animal products for protein, nutrients, and healthful fats are eggs. Whole eggs are high in protein. In fact, 35% of the calories in an egg come from protein, and one large whole egg contains 6 grams. Studies show eggs can help a person feel satisfied and full for longer, helping prevent overeating. Eggs are versatile, can be eaten any time of the day, are low in calories, affordable, and easy to store. One myth surrounding eggs is that they are bad for cholesterol levels. Fortunately, this claim is largely untrue. While egg yolks are high in dietary cholesterol, their effect on blood cholesterol levels is minimal when compared to the effects of saturated and trans fats. If you are still feeling uneasy, egg whites are full of protein and cholesterol-free.

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Cottage Cheese

Cottage cheese is a soft, unaged cheese made from the curds of pasteurized cow's milk. This is one dairy product with an abundance of casein protein, and it is loaded with calcium, iron, phosphorus, riboflavin, and vitamin B12. Protein accounts for 70% or more of the calories in non-fat cottage cheese. Casein digests more slowly than whey protein, feeding the muscles all day or night. In fact, studies have shown that cottage cheese mimics the same long-lasting fullness as eggs.

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Oats

Oats have more protein than any other common grain -- 17 grams per 100 grams. Although oats do not contain all nine of the essential amino acids, like most plant sources, they are still considered a high-quality option. Raw oats are easy to prepare, which means controlling sugar content and flavor is simple. Furthermore, oats are whole grains, which makes them high in fiber, an essential nutrient that can help lower cholesterol levels, reduce the risk of inflammatory diseases, and control blood glucose.

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Turkey Breast

Turkey breast has practically the same amount of protein (29 grams protein per 100 grams of roasted turkey) as chicken breast, but with fewer calories and dietary cholesterol. Comparing the two, the nutritional values are similar enough that it comes down to flavor preference. Turkey has a firmer texture with a more distinct taste than chicken. Like all meats, turkey breast is a complete protein containing all the essential amino acids including tryptophan, which helps regulate sleep.

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Quinoa

Quinoa has risen to become one of the most popular exotic grains of our time. Native to the Andes mountains in Bolivia, Chile, and Peru, people in these regions have consumed the grain for thousands of years. Quinoa is technically a seed, not a grain. While most plant products contain only some of the essential amino acids, quinoa is one of the only complete vegetarian proteins. One hundred grams of cooked quinoa provides 4.4 grams of protein.

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Guava

Fruits are not often considered as protein sources, but guava is the most protein-rich fruit. It also offers the antioxidants vitamin C and lycopene. Furthermore, carotenoids, like lycopene, from guavas, can protect the eye against light-induced damage, cataract development, and age-related macular degeneration (ARMD). There is about 2.6 grams of protein in 100 grams of guava.

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Fish

Fish, in general, is high in protein. Some varieties provide as much protein per ounce as chicken and lean beef. Wild-caught fish is generally higher in protein than farmed fish. Halibut wins out over the rest. Although containing a moderate amount of mercury, this white fish is an excellent addition to the diet, with more than 30 grams of protein in half a fillet. Salmon is another great source, one of the healthiest fatty fish. Trout is also a good option, boasting all the essential minerals and plenty of protein. Cod, farmed tuna, and haddock make the best-of list, as well.

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Pistachios

Pistachios are a great protein-filled snack, with 20 grams of protein per 100 grams. Pistachios are somewhat high in calories but they're also rich in fiber, vitamin B6, iron, phosphorus, and vitamin E. The only drawback of pistachios is their sodium content, as most packaged options are salted. Look for low-sodium or sodium-free options.

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Greek Yogurt

Non-fat Greek yogurt offers more than 60 percent of its calories as protein, with 17 grams in a single, 6-ounce serving. This impressive content compared to traditional yogurts is likely to thank for the variety's rapid rise in demand in recent years. The protein found in Greek yogurt, casein, is the same as cottage cheese, making it an attractive choice for bodybuilders and anyone else looking to pack on the lean muscle. In addition to protein, Greek yogurt has loads of bone-building calcium and probiotic bacteria, which is great for gut health and motility.


Disclaimer

This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.