Everything in this guide
Updated November 15, 2026.
The guide
How much protein you need, and how to get it
Most adults need 1.2 to 1.6 g of protein per kg a day and fall short at breakfast and lunch. How protein works, food first, and the simple plan to get enough.
Daily protein intake by age, goal and body size
Most adults need 1.2 to 1.6 g per kg a day, about 100 to 130 g at 180 lb, counted from today's weight unless a lot is to lose. The old 0.8 is a floor.
How to get enough protein without protein powder
One protein food in every meal, breakfast first, gets most adults to their range with no scoop. A food-only day of 117 g comes in under 1,100 calories.
How much protein per meal, and does breakfast matter?
About 0.4 g per kg at each meal, about 35 g at 180 lb. Americans eat about 15 g at breakfast and 32 g at dinner, so breakfast is where the missing grams are.
What does protein actually do?
Your muscle is taken apart and rebuilt every day from amino acids. Protein supplies the parts, and lifting tells your body to build more than it breaks down.
How much protein do you need to build muscle?
The typical 1.2 to 1.6 g per kg, up to about 2.2 if you lift hard and want every bit. Lifting does the building, and protein keeps it from being held back.
How much protein is too much, and who sets their own number?
There's no US upper limit, and healthy kidneys showed no harm in trials, though most were short. With kidney disease your doctor sets your number. Pregnancy is 71 g.
How much protein do you need when pregnant or breastfeeding?
About 71 g a day (1.1 g per kg) in the second half of pregnancy, the US RDA. Breastfeeding is 1.3 g per kg. Your midwife or doctor sets anything more.
How do you keep muscle while you lose weight?
Eat 1.2 to 1.6 g of protein per kg, counted near your goal if a lot is to lose, and lift twice a week. Lean lifters on a hard diet go to 2.3 to 3.1 g per kg of lean mass.
How much protein on a GLP-1 like Ozempic or Mounjaro?
The same typical range, counted near your goal, in small meals with protein first, and lift twice a week. The 2025 GLP-1 advisory also allows a flat 80 to 120 g.
Why do you need more protein after 50?
Older muscle answers a meal less strongly, so each meal needs to be bigger: about 0.4 g per kg in men around 71 against 0.24 at 22. Eat your range and fix breakfast.
I'm vegan. Do I need to worry about protein?
A little. Your range is the same, plant protein costs more calories per gram, and 0.8 g per kg fell short in vegan men. Soy, seitan, lentils and B12 cover it.
I'm vegetarian. How do I get enough protein?
Eggs and dairy make it easy. Greek yogurt, 1% cottage cheese and egg whites match chicken per calorie. Aim for 1.2 to 1.6 g per kg, with one at every meal.
How to eat more protein
Rank foods by protein per 100 calories, build each meal around one that carries a lot, and use swaps and a shake where they help. Shrimp, tuna and egg whites lead.
Protein powder: when it helps, which kind and how much
You don't need it, and a gram counts like food. A scoop of whey adds about 25 g. Use it for gaps, pick whey or soy with a testing seal, and not every day.
Lean protein or just more food, what's the difference?
30 g of protein costs about 150 calories from chicken breast and about 820 from pasta. A big meal can hit the protein, but it brings the rest of the plate along.
Which foods are the best protein? Ranked four ways
Shrimp, tuna and cod lead per calorie, dried beans and eggs per dollar, and eggs, dairy, meat and soy on quality. Each ranking from USDA and US price data.
The best plant-based protein sources, ranked
Seitan, tofu, tempeh, edamame and lentils lead. Soy and beans carry every essential amino acid, and nuts and grains run short on lysine. Ranked from USDA data.
What is a complete protein, and which foods have one?
Every food has all nine essential amino acids, in different amounts. Grains and nuts run short on lysine, beans and soy meet the adult pattern, eggs and dairy clear it.
Which plant proteins go together?
Rice and beans fill each other's gaps, and a quarter cup of beans is enough to fix a cup of rice. Peanut butter on whole wheat doesn't, because both run short on lysine.
Can you get enough protein from plants?
Yes, with soy, a blend or a bigger serving. Soy matched milk for muscle across 17 trials, and a vegan diet matched for protein built the same muscle in 10 weeks.
Questions
Am I eating enough protein?
Probably not if breakfast is a bagel or just coffee. US adults average about 1 g per kg, under the new range. Count three normal days or take the quiz.
Can eating more protein make you gain weight?
Only through its calories, like any food. 100 g of protein is 400 calories, and digesting it uses up 20 to 30% of them.
Can I get enough protein eating in an 8-hour window?
Yes, in two or three bigger meals. 100 g at once kept muscle building going for over 12 hours in a 2023 trial (Trommelen 2023).
Do I weigh chicken raw or cooked?
Either, as long as the number matches. The raw figure on a cooked weight undercounts by about a quarter. 4 oz raw is about 3 oz cooked.
Does protein powder count as real protein?
Yes, a gram from a shake counts like a gram from food. A scoop of whey has about 25 g, enough to fix most breakfasts.
How many meals should I split my protein into?
Three or four. In a 12-hour study, four 20 g doses built more muscle protein than eight 10 g doses or two 40 g doses (Areta 2013).
How much protein do I need a day?
1.2 to 1.6 g per kg, about 100 to 130 g at 180 lb. Under that is too low, and many people are. The Gyroscope app personalizes yours.
How much protein do vegans need?
The same range. Soy or a pea and rice mix closes most of the gap, and a vegan diet matched for protein built the same muscle in a 10-week trial.
How much protein do you need after 50?
At least the typical range, with bigger meals. Men around 71 needed about 0.4 g per kg in one meal, against 0.24 at 22. Start with breakfast.
How much protein is in an egg?
About 6 g in a large egg (6.3, USDA), and 43% of it is in the yolk. Four large eggs make about 25 g.
How much protein is in chicken breast?
About 31 g per 100 g cooked and 22.5 g raw. A 4 oz raw breast cooks down to about 3 oz with about 25 g.
How much protein is in Greek yogurt?
About 15 g in a 5.3 oz cup of plain nonfat, about three times regular yogurt ounce for ounce. Whole milk Greek yogurt has about 13.5 g a cup.
How much protein should a woman eat a day?
The same 1.2 to 1.6 g per kg as anyone, about 75 to 100 g at 140 lb. The hard part is fitting it into fewer calories. The Gyroscope app personalizes yours.
How much protein should I eat at breakfast?
Your meal line, about 25 to 35 g for most adults. Americans average about 15 g at breakfast and twice that at dinner. The Gyroscope app personalizes yours.
How much protein should I eat on Ozempic or Mounjaro?
The same typical range, counted near your goal, in small meals with protein first, and lift. The 2025 GLP-1 advisory also allows a flat 80 to 120 g a day.
How much protein should I eat per meal?
About 0.4 g per kg at each meal, so about 35 g at 180 lb, over three or four meals. Bigger meals aren't wasted. The Gyroscope app personalizes yours.
How much protein should I eat to lose weight?
The typical 1.2 to 1.6 g per kg, counted near your goal if you have a lot to lose. Lean lifters on a hard diet go to 2.3 to 3.1 g per kg of lean mass.
How much protein should I eat with kidney disease?
Your doctor sets it, so this site gives no range. The 2024 kidney guideline suggests 0.8 g per kg for stages 3 to 5, and a dietitian fits it to you.
Is 100 g of protein a day enough?
For anyone from about 135 to 185 lb, yes. Lighter, it's plenty. Heavier, or lean and lifting hard, it's short. The Gyroscope app personalizes yours.
Is 150 g of protein a day too much?
No, not for healthy kidneys, and it's typical from about 205 to 280 lb. At 150 lb it's 2.2 g per kg, the top of what helped lifters in a big review.
Is 200 g of protein a day too much?
More than most people need. At 180 lb it's 2.4 g per kg, past where gains leveled off. Healthy kidneys showed no harm, in short trials.
Is pea protein as good as whey?
Close, with a bigger scoop. Pea is about 7% leucine against whey's 11%, so about 38 g of pea matches 25 g of whey. Soy matched milk in trials.
Is protein dangerous?
Not for healthy kidneys in the trials so far, which were short. Kidney disease and stones are different, and a 2025 advisory says to avoid over 2 g per kg for long.
Should I eat protein before bed?
Only if you're short for the day. Protein at night beat no protein, but casein by day did just as well as casein at night in a 10-week trial (Joy 2018).
Should protein be based on goal weight or current weight?
Today's weight, unless you have more than a fifth of it to lose. Then count from your goal plus a fifth of today's: 250 lb aiming for 180 counts as 230.
Someone said X grams of protein is enough. Is it?
Turn it into grams for your weight and check it against 1.2 to 1.6 g per kg. The 50 g on food labels is low for most adults, and 1 g per pound is more than most need.
What are the signs you're not eating enough protein?
Usually none you'd notice. The reliable check is counting three normal days against your range. The Gyroscope app personalizes yours.
What should I eat on Ozempic when I'm not hungry?
Protein first, in small dense foods: nonfat Greek yogurt, 1% cottage cheese, eggs, tuna, shrimp, or a shake if it sits well.
What's the cheapest way to get protein?
Dried beans, about 43 cents for 25 g at October 2026 US prices, then eggs at 77 cents. Chicken breast is about a dollar.
Which foods have the most protein for the fewest calories?
Shrimp, canned tuna, turkey breast, cod and egg whites lead at 21 to 24 g per 100 calories. Chicken breast is 20, Greek yogurt and 1% cottage cheese 17.
Why can't I hit my protein on 1,200 calories?
100 g of protein is 400 calories, a third of the day. Every meal needs one food with 15 g or more per 100 calories.
Myths
Your body can only use 30 g of protein at a meal
No. The 30 g came from short studies of muscle building, not of absorption. In 2023, 100 g after a workout kept muscle building going for more than 12 hours.
You need 1 g of protein per pound
Sort of. In 49 trials, gains leveled off near 0.7 g per pound. 1 g per pound is the top of the uncertainty, and it fits lean people lifting hard on a diet.
A high-protein diet damages your kidneys
No, not healthy ones. 28 studies and then 22 trials found more filtering and no sign of injury, though most were short. With kidney disease your doctor sets your number.
You have to eat protein within 30 minutes of a workout
No. Across 23 studies, protein timing around workouts made no difference once the day's total was counted, and the total was the strongest predictor of muscle growth.
Plant protein can't build muscle like meat
Soy matched milk in 17 trials, and a vegan diet matched for protein built the same muscle in 10 weeks. Single non-soy plant proteins fell short, so use soy or a blend.
You need less protein as you get older
No. Older muscle needs a bigger meal: about 0.40 g per kg in men around 71 against 0.24 at 22. Up to 46% of US adults over 70 eat less than even the old 0.8 minimum.
The protein is in the egg white
Sort of. A large egg's white has 3.6 g of protein and the yolk 2.7 g, so tossing the yolk tosses 43% of it. Whites do win per calorie, 21 g per 100 against 8.8.
Peanut butter is a good source of protein
Two tablespoons have 7 g of protein and 191 calories, 3.7 g per 100 calories, less than a plain bagel's 4.0. It's good food, but it isn't a protein food.
Eating more protein makes you eat less
Yes, but mostly one way. Across 38 trials more protein went with fewer calories. In one trial, cutting protein raised intake 12%, while raising it didn't lower intake.
Tools
How much protein do I need?
Your weight and goal set a typical range in grams, split into meals and shown as food.
Does my meal clear the line?
Build your usual breakfast from food pictures and see if it reaches your meal line.
Which foods have the most protein per calorie?
49 foods ranked by protein per 100 calories, and the Higher or Lower game.
Is my number enough?
Any daily gram figure placed on your range, as meals, calories and food.
Raw or cooked?
Chicken or beef weighed raw or cooked: the protein either way, and the mistake in grams.
What does 25 g of protein cost?
Dried beans, eggs, milk, chicken and cheddar at US average prices, per 25 g and per day.
Which plant foods complete each other?
Pick two plant foods and see their essential amino acids together against the adult pattern.
Am I eating enough protein?
A two-minute quiz: your three meals against your meal line, your day against your range, and the one fix.
Protein studies, tips and resources
Every tip and study on this site, each in one line you can copy and share.
Track it in Gyroscope
Photograph a meal. Calories, protein, carbs, fat, fiber, sugar and a grade, in seconds.
