Few nutrients are as important as protein. Protein is essential to good health. The very origin of the word — from the Greek protos, meaning “first” — reflects protein’s top-shelf status in human nutrition. According to the Dietary Reference Intake report for macronutrients, a sedentary adult should consume 0.8 grams of protein per kilogram of body weight, or 0.36 grams per pound. That means that the average sedentary man should eat about 56 grams of protein per day, and the average woman should eat about 46 grams
esearch on how much protein is the optimal amount to eat for good health is ongoing, and is far from settled. The value of high-protein diets for weight loss or cardiovascular health, for example, remains controversial.
Generally, animal protein provides all essential amino acids in the right ratio for you to make full use of them. This makes sense, as animal tissues are similar to your own tissues. If you’re eating animal products like meat, fish, eggs, or dairy every day, you’re likely getting enough protein.
However, if you don’t eat animal foods, getting all the protein and essential amino acids your body needs can be more challenging. In plant protein, such as the vegetarian diet, are linked with many health benefits. Studies suggest vegetarians tend to have a lower body weight; lower cholesterol and lower blood pressure levels. They also have a lower risk of stroke, cancer and death from heart disease than non-vegetarians. Proteins do most of their work in the cell and perform various jobs. Here are 5 important functions of protein in your body.