Get more protein

TL;DR. Hit your protein number with real food. 0.8 g/kg if you sit all day, 1.0 to 1.2 g/kg if you train hard or you're over 65, 1.6+ g/kg if you're building muscle. The grams are easy; what comes packaged with the protein decides whether the meal helps. Greek yogurt, lentils, salmon, chicken thighs, eggs, beans do the job. Most bars and shakes clear the gram count too, but they're ultra-processed formulas with a high-protein sticker on the front. This goal rewards whole-food protein over "high protein" panels.

What this goal does

• Hard rules: none. No snack or meal will break a streak. Sarcopenia builds over decades, and the fix runs on the same clock.
• Soft rules. Snacks or meals under 5 g of protein get a gentle nudge, not a penalty. The nudge suggests a real-food add-on: peanut butter on the apple, a boiled egg with the toast, edamame with the rice.
• Bonuses. Whole-food sources at 10 g of protein or more per serving earn the bonus: yogurt, eggs, fish, beans, tofu, chicken, cottage cheese, lentils. Whey, casein, and soy isolates do not earn the bonus, even when the label brags about 20 g. The goal teaches your eye to find protein in food, not in formulas.

How much protein do you actually need?

The RDA from the National Academies is 0.8 g per kg of body weight per day for healthy sedentary adults. For a 70 kg person that's about 56 g. A day of Greek yogurt, a turkey sandwich, and chicken with rice and beans clears it without trying. Most Americans hit the RDA on autopilot. The protein deficiency the supplement industry sells you on is not real for normal eaters.

Three groups need more.

Active adults who train hard need 1.0 to 1.2 g/kg; competitive athletes run 1.4 to 1.6 g/kg. Training breaks muscle fiber, and your body uses amino acids to rebuild it.

Older adults, 65 and up, need 1.0 to 1.2 g/kg even at rest. The Bauer 2013 PROT-AGE paper set this standard. Older muscle responds less to a given dose, so the RDA that works at 35 leaves a 70-year-old losing lean mass year by year. In recovery from illness or surgery, climb to 1.2 to 1.5 g/kg.

People building muscle sit near 1.6 g/kg or higher, with diminishing returns past 2.2 g/kg.

Work inside a range. Skip the daily gram target.

The protein package: what comes with the grams

Walter Willett's framing in Eat, Drink, and Be Healthy is the most useful single idea here. Protein never shows up by itself. It comes packaged with fat, fiber, vitamins, minerals, and sometimes additives. The package is what you eat.

• 4 oz salmon. 25 g, plus 1,500 to 2,000 mg of long-chain omega-3s, vitamin D, selenium, B12.
• 4 oz chicken thigh. 25 g, plus a little saturated fat, niacin, B6.
• 1 cup plain Chobani Greek yogurt. 17 to 20 g, plus calcium and live cultures.
• 1 cup cooked lentils. 18 g, plus 16 g fiber, folate, iron, magnesium, polyphenols.
• 2 eggs. 12 g, plus choline, lutein, B12, vitamin D.
• 1 cup black beans plus 1 cup brown rice. 22 g, 18 g fiber, a complete amino acid profile.
• 1 Beyond Burger patty. 20 g from pea isolate, plus methylcellulose, gums, refined oils, salt. Grams count; package is ultra-processed.
• 1 Quest Bar. 20 g from whey and milk protein isolates, plus sucralose, soluble corn fiber, emulsifiers. NOVA Group 4, whatever the front of the wrapper claims.

Harvard researchers have run the same comparison across millions of person-years in the big cohort studies. Swap red and processed meat for fish, poultry, beans, or nuts, and you cut heart disease, type 2 diabetes, and early death. Same gram totals, different packages.

Plant vs animal: the question that gets oversimplified

The Adventist Health Study followed about 96,000 Seventh-day Adventists with diets ranging from strict vegan to regular meat-eater. Plant-heavy Adventists lived longer than meat-eating Adventists. Strict vegans landed about the same as lacto-ovo-vegetarians. The win came from eating more plants. Going to zero animal foods added nothing on top.

Animal proteins carry all 9 essential amino acids in the ratios humans need. Single plant proteins run low on 1 or 2 (grains lack lysine, beans lack methionine), but a varied plant diet covers the gaps without math, and you don't have to combine them at the same meal. The body pools amino acids across the day. The rule from the macronutrients module holds: more beans, fish, nuts, and yogurt; less red and processed meat.

Why the shake aisle isn't the answer

Whey, casein, and soy isolates are ultra-processed ingredients. Manufacturers pull the protein out of milk or soybeans, dry it, blend it with sweeteners, gums, emulsifiers, and flavorings, and press it into a bar or a powder. You get the grams; you don't get food. That's what NOVA Group 4 describes: an industrial formula built from isolated nutrients.

A shake after a hard workout is fine. A bar in an airport is fine. The risk is letting them become the default. A Quest Bar at 3pm and a shake at 8pm is 40 g of protein you could have gotten from a cup of Chobani and a chicken thigh. Powders earn a spot in the rotation. They don't earn the headline.

Why this matters for older adults

Muscle peaks around age 30 and drops 3 to 8 percent per decade after that without resistance training and adequate protein, a slide called sarcopenia. By 70, an inactive adult can have lost 30 to 40 percent of the lean mass they had at 30. Sarcopenia is the strongest predictor of falls, fractures, and loss of independence. The fix: lift something heavy 2 or 3 times a week, and eat 25 to 30 g of high-quality protein at each of your 3 meals.

Frequently Asked Questions

Do I need to track grams?

No. The goal counts for you. Aim for a palm-sized portion of protein at each meal.

Is a protein bar ever fine?

In a pinch, yes. It doesn't earn the bonus, and it shouldn't be the default. A Quest Bar 3 times a week is fine. 3 times a day is the optimization trap.

Beyond and Impossible?

They hit the grams. They're still NOVA-4. Treat them like the bars: occasional, not default. Lentils, tofu, and tempeh are the everyday plant-protein answers.

I'm vegan. Can I hit the bonus?

Yes. Lentils, beans, tofu, tempeh, edamame, seitan, and soy milk all count. A cup of cooked lentils alone clears the 10 g threshold. Pea or soy protein powder does not.

Does too much protein hurt your kidneys?

Not in healthy adults. The warning comes from studies of people with existing kidney disease.

Sources

1. National Academies. Dietary Reference Intakes (RDA 0.8 g/kg).
2. Ross et al. Modern Nutrition in Health and Disease, 12th ed.
3. Willett. Eat, Drink, and Be Healthy.
4. Bauer et al. (2013). PROT-AGE position paper. JAMD 14(8).
5. Phillips et al. Protein requirements beyond the RDA. Appl. Physiol. Nutr. Metab. 41(5).
6. Orlich et al. Adventist Health Study 2. JAMA Internal Medicine 173(13).

Related modules

• C3: Macronutrients without the moralism (prerequisite)

Related glossary terms

• Essential amino acids
• Protein quality
• NOVA classification
• Sarcopenia