Protein is more than a nutrient—it’s your body’s primary repair engine. However, finding your personal magic number takes more than a glance at a food label.
“There isn’t a single protein recommendation that suits everyone. How much protein you need depends on your stage of life, how active you are, and what your health or fitness goals are,” Chantelle van der Merwe, a registered dietitian, told The Epoch Times.
How Much Protein Should You Eat?
How much protein you should eat depends on how active you are. “Someone who spends most of the day at a desk has different protein needs from someone who runs, cycles, goes to the gym, or plays sport several times a week,” van der Merwe said. Active people need more protein to support muscle repair. Exercise stresses muscle tissue, and protein supplies the building blocks needed to repair and strengthen it, so the harder and more often you train, the more you need.
Jose Antonio, professor of exercise and sport science and CEO of the International Society of Sports Nutrition, said a big misconception is that the baseline protein intake is sufficient or optimal for active people and athletes. “This is nonsense,” he told The Epoch Times.
Age is another big factor. Starting around 40, we naturally begin to lose muscle mass and strength, and the body becomes less efficient at using protein to maintain muscle. Thus, older adults typically need more protein, spread evenly across meals, to help preserve strength.Your health goals also matter. If you are trying to lose weight, for example, eating enough protein can help you stay fuller for longer while protecting muscle as you lose body fat. Recovery is another time when protein needs increase. People recovering from surgery, illness, or injury often need additional protein to support healing, van der Merwe said.
Sex matters less than people may assume. Men and women generally need similar amounts of protein relative to their body weight. Men often require more protein overall simply because they tend to have larger bodies and more muscle mass. Pregnancy and breastfeeding are important exceptions, when women’s protein needs increase to support the growth and development of the baby.
Technically, It’s Not a Protein Problem
Here’s where the gram-counting approach runs into a wrinkle. Dr. Nicolaas Deutz, who studies protein and amino acid metabolism at Texas A&M University, argues the whole framework is slightly off.
“People think they have protein requirements,” Deutz told The Epoch Times. “They don’t—they have amino acid requirements.”
Amino acids are the building blocks protein breaks down into once you eat it, and different people need different amino acids—someone in intensive care, for instance, may become deficient in a specific amino acid called arginine, regardless of their total protein intake.
The practical takeaway isn’t to start counting amino acids—that’s not realistic for most people. It’s that hitting a gram target is a reasonable proxy for most healthy people, but some people may need more.
Does the Type of Protein Matter?
Getting enough protein is important, but the type of protein you eat is also important.
Dietary protein comes from animal and plant foods. Animal proteins generally contain higher amounts of essential amino acids. They are also digested more quickly, resulting in a larger rise in circulating amino acids, which makes them particularly effective at stimulating muscle protein synthesis.
That doesn’t rule out plant-based eating; it just means the math changes. To get the same muscle-building benefit, someone eating mostly plant protein may need to eat 50 percent to 75 percent more total protein than someone eating animal protein, depending on the source.
Researchers are also increasingly looking beyond isolated protein powders and focusing on the importance of whole foods protein sources. Foods naturally contain a variety of bioactive compounds that interact with protein and influence muscle health and overall protein metabolism.
Two Myths Worth Retiring
Protein is more nuanced than simply trying to eat as much as possible. Unfortunately, that complexity has also given rise to a number of persistent myths.
One of the most persistent myths is that eating a high-protein diet harms the kidneys for healthy people and leaches calcium from bones.
“Totally false,” Antonio said.
The Institute of Medicine and the World Health Organization have also both concluded that there is no evidence linking higher protein intake to kidney disease.
Another common concern is that excess protein is converted into body fat.
Higher protein intakes are generally safe. While excess protein that the body doesn’t use for muscle building or other functions can be converted into carbohydrates or fat, higher protein intakes do not necessarily increase body fat in people who exercise regularly. Instead, additional protein has been linked to increases in energy expenditure and lean body mass, with little effect on fat mass unless overall training habits change.
Overall, healthy people can have protein above the RDA level without experiencing adverse effects. However, evidence becomes limited at very high intakes and over longer periods.
Rather than focusing only on the total amount of protein someone eats, Deutz believes we should ask whether they are getting enough of the amino acids they actually need. “If we simply give someone more protein, we’re also giving them lots of amino acids they may not need, which the body then has to process and get rid of,” he said. This can put extra strain on the body and could be detrimental especially when someone is unwell.
Putting Protein Into Practice
Once you have an idea of your own protein needs, the next step is putting that knowledge into practice. Fortunately, that doesn’t have to involve tracking every gram or following a complicated eating plan.
“Theoretically, I should be aiming for around 48 to 60 grams of protein per day, but I honestly don’t spend my day counting grams or tracking it in an app,” van der Merwe said. “I think protein is something many people overcomplicate.”
For most healthy adults, three balanced meals a day that each include a good source of protein gets the job done, she said.
“For example, if I have two eggs for breakfast and around 120 grams of lean meat, chicken, or fish at both lunch and dinner—about one small chicken breast, one medium fish fillet or a small steak—with a small serving of Greek yogurt as a snack, I’ve already comfortably met my daily needs,” she said.
For those looking to increase their protein intake, the easiest place to start is often breakfast, which tends to be the meal that contains the least protein.
Adults typically eat only around 16 percent of their daily protein at breakfast, compared with 31 percent at lunch and 42 percent at dinner. Adding foods such as eggs, plain Greek yogurt or cottage cheese can be an easy way to increase protein intake earlier in the day.
Van der Merwe shared the following ideas to help increase the protein content of everyday snacks:
Antonio’s rule of thumb sums it up well: Build plates around a protein source rather than carbohydrates or fat.
“And remember, consistency beats perfection.”