How much protein do you actually need?

Most people ask the wrong protein question. They ask whether they are getting enough, using the government minimum as the bar. The minimum, 0.8 grams per kilogram of body weight per day, was set to keep a sedentary adult out of deficiency. It is a floor, not a goal. If you train, if you are trying to hold onto muscle, or if you are simply getting older, the useful target sits well above it. Here is what the research supports, and how to reach it with food rather than a tub of powder.

The RDA is a floor, not a target

The 0.8 g/kg RDA comes from nitrogen-balance studies designed to prevent deficiency. For a 70 kg (154 lb) adult, that is about 56 grams a day. The same reference tables set an acceptable range of 10 to 35 percent of daily calories from protein, deliberately wide so it can cover everyone from a desk worker to an endurance athlete. Most Americans sit near the bottom of that range.

That is fine for avoiding a shortfall. It is not the number that supports training, recovery, or holding muscle through the years.

What active and older adults actually need

For adults who exercise, the International Society of Sports Nutrition places the useful range at 1.4 to 2.0 grams per kilogram per day, up to about two and a half times the RDA. Higher intakes have a role only in narrow cases, such as preserving muscle during a calorie deficit.

Older adults are the group most often shortchanged. Muscle becomes less responsive to protein with age, so the requirement goes up, not down. A 2025 analysis of older adults put the average requirement near 1.2 g/kg and a recommended intake around 1.5 g/kg to maintain muscle. Pair that with resistance training and you have the most evidence-backed recipe for aging with strength.

Spread it across the day

Total protein matters most, but timing helps. Research supports hitting roughly 0.4 g/kg per meal across at least four meals, about 28 grams per sitting for a 70 kg person. The old idea of a hard 30 gram ceiling per meal has not held up; the body can use more, especially from slower-digesting whole foods. Practically, this means protein at breakfast and lunch, not just a large dinner.

Whole food first

You do not need a supplement aisle. Everyday foods carry it: chicken breast and canned tuna are around 30 grams per 100 grams; eggs, Greek yogurt, lentils, edamame and tofu all pull their weight. Registered associate nutritionist Emily English frames protein as a non-negotiable for satiety, energy and recovery, and her most practical tip is simply to keep ready-to-eat proteins on hand, such as cooked chicken, eggs, tinned fish and cottage cheese, so hitting your number is the path of least resistance.

Two myths worth dropping

“High protein wrecks your kidneys.” A McMaster University review of 28 studies found no evidence that higher protein harms kidney function in healthy adults. The important caveat: this does not apply to people with existing chronic kidney disease, who should follow their care team’s guidance.

“You cannot get enough without meat.” Variety does the work. A long-running Harvard analysis found that swapping a small share of animal protein for plant protein was associated with lower cardiovascular mortality. Mixed sources are a feature, not a compromise.

And the quiet third myth: more is always better. Past roughly 2.2 g/kg, without a specific reason like heavy lifting in a deficit, extra protein mostly makes for expensive meals.

The Central Texas angle

You do not have to import a coastal wellness template to eat this way here. Tex-Mex staples already line up with the advice: pinto and black beans, eggs in migas or huevos rancheros, shredded chicken. Central Texas barbecue is genuinely high protein, worth enjoying, and best treated as an occasion rather than a daily base given the saturated fat. For the growing active-adult and retiree populations across Austin, Round Rock, Georgetown and College Station, the protein target is one of the highest-leverage, lowest-cost changes available.

This is education, not medical advice. If you have kidney disease or another condition that affects protein needs, talk with your provider or a registered dietitian about the right number for you.

Good questions

Common questions

Is 0.8 g/kg enough if I work out a few times a week?

Likely not for maintaining muscle. The 0.8 g/kg RDA was set for sedentary adults to prevent deficiency. Sports-nutrition guidance places regularly exercising adults at roughly 1.4 to 2.0 g per kg of body weight per day.

Does it matter how I spread protein across the day?

Yes. Research supports distributing protein across at least four meals, around 0.4 g/kg per sitting, rather than saving it all for dinner. Even intake tends to produce more muscle protein synthesis over 24 hours than the same total eaten unevenly.

Can I get enough protein from plants alone?

Yes, with variety. No single plant food has to be complete at every meal. A varied diet of legumes, grains, nuts, seeds and vegetables across the day supplies all the essential amino acids. Soy, edamame and quinoa are complete on their own.

Do I need more protein as I get older?

Yes. Muscle rebuilds less efficiently with age, so older adults are generally guided toward roughly 1.0 to 1.2 g per kg per day, above the standard RDA. Protein paired with resistance training is the best-supported approach for aging well.

Keep reading