Understanding Dietary Protein Needs
Learn how to get the right amount of protein from food sources to support body functions.
Learn how to get the right amount of protein from food sources to support body functions.
KEY TAKEAWAYS- Protein is a nutrient found in every cell of the human body.
- Dietary protein comes from a variety of foods.
- Unlike fats and carbohydrates, the body does not store protein.
- [MedlinePlus: Dietary Proteins](https://medlineplus.
What Is Dietary Protein?
Protein is a nutrient found in every cell of the human body. It plays a fundamental role in the structure and function of the body. The body uses protein to build and maintain bones, muscles, and skin. Because protein is essential for these processes, it must be obtained from the foods we eat.
Protein is made up of smaller building blocks called amino acids. The body can make some amino acids on its own, but there are others that it cannot produce. These are called essential amino acids. To get them, a person must consume them through their diet.
Sources of Protein
Dietary protein comes from a variety of foods. Common sources include meat, dairy products, nuts, and certain grains and beans. These foods provide the body with the necessary amino acids to function correctly.
Proteins from meat and other animal products are considered complete proteins. This means they contain all of the amino acids the body cannot make on its own. In contrast, most plant proteins are incomplete. This means they lack one or more of the essential amino acids. To get all the amino acids needed, it is important to eat different types of plant proteins every day.
Why Protein Is Necessary Every Day
Unlike fats and carbohydrates, the body does not store protein. Because it cannot store it for later use, it is important to eat protein every day. The amount of protein a person needs depends on several factors, including age, sex, health status, and level of physical activity.
While protein is vital for health, most Americans eat enough protein in their diet to meet their needs. It is important to focus on getting the right amount rather than consuming excessive amounts. Balancing protein intake with other nutrients is a key part of a healthy diet.
Sources and scope
This article was prepared with automated assistance and checked against the linked MedlinePlus summaries; it has not been reviewed by a clinician. It is general information, not a diagnosis or a substitute for personalized medical advice. Seek local medical help for urgent or worsening symptoms.
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