How Much Protein Do I Need? Find Your Number

The "right" amount of protein depends on what you're trying to do. Someone maintaining their weight has different needs than someone building muscle or cutting fat. The old recommendation most people cite is outdated. And the ranges you find online are so wide they're barely useful.

This guide fixes that. You'll find your specific number, see what it looks like on a plate, and figure out how to hit it without overhauling your entire life.

The old recommendation is the minimum to avoid malnourishment

The US Recommended Dietary Allowance (RDA) represents the minimum intake needed to prevent malnutrition, not the amount that's best for you. It's like the minimum passing grade. You technically didn't fail, but you're not exactly thriving.

The RDA was set using nitrogen balance studies, which require people to eat experimental diets for weeks before measurements are taken. That gives the body time to adapt to low protein by downregulating processes like protein turnover and immune function. Newer research using the Indicator Amino Acid Oxidation (IAAO) method, which assesses protein requirements within 24 hours, suggests that about 1.2 g/kg per day is a more appropriate RDA for healthy young men, older men, and older women.

That's 50% higher than the old number. For a 160-pound person, it's the difference between 58g and 87g per day.

How to calculate your protein target

The formula is simple. Multiply your body weight in pounds by the per-pound number that matches your goal. (Prefer metric? Divide your weight in pounds by 2.2 to get kilograms, then use the g/kg figure instead.)

General health (sedentary or lightly active): 0.5 g/lb (1.2 g/kg)

Based on IAAO research, healthy sedentary adults should aim for at least 1.2 g/kg per day to support overall health, not just prevent deficiency.

Building muscle: 0.7 to 1.0 g/lb (1.6 to 2.2 g/kg)

A 2018 meta-analysis found that protein intake averaging 1.6 g/kg per day maximized resistance-exercise-induced gains in lean body mass. The upper end of the 95% confidence interval was 2.2 g/kg, meaning some people benefit from going higher. You still need to lift weights. Extra strength training leads to muscle growth, not extra protein intake alone.

Losing fat: 0.7 to 1.2 g/lb (1.6 to 2.7 g/kg)

When you're eating fewer calories than you burn, your body is more likely to break down muscle for energy. Higher protein intake helps prevent that. Evidence from IAAO studies suggests that athletes may benefit from protein intakes as high as 2.4 to 2.7 g/kg during periods of caloric restriction. Even if you're not an athlete, staying in the 1.6 to 2.2 g/kg range helps preserve muscle while you lose fat.

Regular exercisers: 0.5 to 0.8 g/lb (1.1 to 1.7 g/kg)

People who exercise regularly need about 1.1 to 1.5 grams per kilogram. Those who lift weights or train for endurance events need 1.2 to 1.7 grams per kilogram.

Quick-reference table: daily protein targets by body weight and goal

If you're overweight, your weight should be adjusted before calculating your protein needs to avoid overestimating. A dietitian can help with this calculation.

Is 100g of protein a day a lot?

Not really. Look at the table above. A 150-pound person aiming for general health needs 82g. Someone at that weight who exercises regularly or wants to build muscle would need 109g to 150g. So 100g is a perfectly reasonable daily target for most adults.

The National Academy of Medicine sets an acceptable protein intake range of anywhere from 10% to 35% of calories each day. On a 2,000-calorie diet, 100g of protein represents 20% of calories. That's well within the healthy range.

What does your protein target actually look like in food?

This is where most guides stop being useful. They give you a number and leave you to figure it out. Here's what different protein targets look like across a full day of eating.

~100g protein day

• Breakfast: 2 eggs + 1 slice toast + Greek yogurt (25g)
• Lunch: Chicken breast sandwich with vegetables (35g)
• Dinner: Salmon fillet with rice and broccoli (35g)
• Snack: Handful of almonds (6g)

~130g protein day

• Breakfast: 3-egg omelet with cheese + Greek yogurt (33g)
• Lunch: Double chicken grain bowl (45g)
• Dinner: Lean beef stir-fry with vegetables (40g)
• Snack: Cottage cheese with fruit (14g)

~170g protein day

• Breakfast: Protein smoothie with Greek yogurt, milk, and peanut butter (35g)
• Lunch: Tuna salad wrap + hard-boiled eggs (45g)
• Dinner: Two chicken thighs with sweet potato and greens (50g)
• Snacks: Cottage cheese + protein bar (40g)

Notice a pattern? Higher protein targets aren't about eating completely different foods. It's about choosing protein-dense options at each meal and adding a high-protein snack or two.

If you want a head start on high-protein meals, check out this 33g protein breakfast sandwich that takes 7 minutes.

Are 2 eggs enough protein for a day?

No. One large egg provides about 6 grams of protein, so two eggs give you roughly 12g total. That covers about 10-15% of what most adults need daily. Eggs are a great protein source, but they're a starting point, not the whole picture.

Is 30g of protein a day too little?

Yes, for every adult. Even under the old RDA of 0.8 g/kg, a 110-pound person would need at least 40g per day. The recommended range of protein intake is between 0.8 g/kg and 1.8 g/kg of body weight, and 30g falls below even the lowest end for any adult. With the IAAO-supported minimum of 1.2 g/kg, that same 110-pound person needs 60g. Thirty grams is not enough.

Spacing matters more than you think

Most people get the bulk of their protein at dinner. That's not ideal.

Protein is more effective if you space it out over the day's meals and snacks, rather than loading up at dinner like many Americans do. Your body can only use so much protein for muscle protein synthesis at one time. Spreading your intake across 3-4 meals gives your body more opportunities to put it to work.

A simple approach: aim for 25-40g of protein at each meal, depending on your daily target. If your goal is 120g, that's roughly 30g at breakfast, 30g at lunch, 40g at dinner, and 20g from snacks.

Some newer studies show that moving some protein from supper to breakfast can help with weight management. Breakfast tends to be the most protein-deficient meal for most people. Even adding one egg or a serving of Greek yogurt to your morning routine makes a difference.

Protein myths that won't die

"Too much protein damages your kidneys."

For healthy people, this isn't supported by evidence. Studies looking at very high-protein diets of 2.8 g/kg per day or more demonstrated that they are safe in healthy individuals. However, if you have an existing kidney condition, extra protein intake poses an additional risk to people predisposed to kidney disease, and you should talk to your doctor.

"You can only absorb 30g of protein per meal."

Your body will absorb the protein you eat. There's no magic cutoff where it stops processing. What is true is that muscle protein synthesis has diminishing returns at higher per-meal intakes, which is why spacing protein across meals is beneficial. But "absorbing" and "using for muscle building" are different things.

"A bigger steak means bigger muscles."

You can't build muscle without the exercise to go with it. The body can't store protein, so once its needs are met, any extra is used for energy or stored as fat. Extra protein without resistance training just becomes extra calories.

Think about the protein "package"

Not all protein sources are equal. Harvard calls this the protein "package": when you eat foods for protein, you also eat everything that comes alongside it, including fats, fiber, sodium, and more.

A 4-ounce broiled sirloin steak is a great source of protein, about 33 grams worth, but it also delivers about 5 grams of saturated fat. A 4-ounce ham steak with 22 grams of protein has only 1.6 grams of saturated fat, but it's loaded with 1,500 milligrams worth of sodium. 4 ounces of grilled sockeye salmon has about 30 grams of protein, naturally low in sodium, and contains just over 1 gram of saturated fat.

The best protein sources bring good nutrition along for the ride without loading you up on saturated fat or sodium. Some strong options:

• Fish and seafood
• Chicken and turkey (skinless)
• Eggs
• Greek yogurt and cottage cheese
• Beans, lentils, and soy products
• Nuts and seeds

If you're curious about how protein fits into your overall macro picture, our guide to counting macros covers the full breakdown. And if you've heard that dietary fat is something to fear, it's worth revisiting that assumption too.

The real challenge: hitting your number consistently

Knowing your protein target is the easy part. Hitting it day after day is where most people struggle.

The gap between knowing and doing usually comes down to awareness. You might think you're eating enough protein, but the average American consumes around 16% of daily calories in the form of protein. For someone on a 2,000-calorie diet, that's 80g. If your target is 130g, you're 50g short every day without realizing it.

A few practical approaches that help:

Front-load your protein. Make breakfast and lunch do more of the heavy lifting. If you can get 60-70g before dinner, the rest takes care of itself.

Keep high-protein staples on hand. Greek yogurt, canned tuna, rotisserie chicken, eggs, cottage cheese. These aren't glamorous, but they close gaps fast.

Track for a week. You don't need to log every meal forever, but a week of tracking reveals where your blind spots are. Some people find that apps like Maccy, where you just type what you ate in plain language and it logs your calories and macros, make this easy enough to actually follow through on. Others prefer a simple notes app or even pen and paper. The tool matters less than the insight.

Build protein into meals you already eat. Add chicken to your pasta. Put an egg on your rice bowl. Swap regular yogurt for Greek. Small additions compound over time.

Once you know your number and see where your current eating falls short, closing the gap is surprisingly straightforward. You don't need a complete diet overhaul. You need a few better defaults.

If you want a system for tracking all three macros without the friction of traditional food logging, here's the easiest way to track macros without logging every detail.