How much protein should be in a meal?

Take your typical daily range and split it over your meals. The 2025 to 2030 US guidelines set 1.2 to 1.6 g of protein per kg of body weight a day, which is about 95 to 125 g for a 170 pound person, or 30 to 40 g at each of three meals. The Gyroscope app personalizes yours. These ranges show you if you’re too low, and many people are.

There are two common mix-ups. One is that your body can only use 30 g at a sitting, so more is wasted. The other is that it’s fine to get it all at dinner, which is close to how a lot of Americans eat.

We’d hit at least the low end of your range at every meal, breakfast included. A bigger dinner is fine on top of that. A breakfast with 10 g of protein is the gap we’d close first.

Protein is like watering a plant. Three good waterings a day do more than one flood at night.

How much at each meal for my weight?

These are the typical ranges from the US guidelines, split over your meals and rounded to 5 g.

Under the low end is too low. If you have more than a fifth of your weight to lose, count from your goal plus a fifth of what you weigh now. bodyfat.guide explains why. The plate size calculator does the split for any weight and any number of meals.

Why spread it out?

In a 2014 study, eight healthy adults ate about 90 g of protein a day for a week, once split evenly (about 30 g at breakfast, lunch and dinner) and once skewed (about 10 g, 15 g and 65 g). Muscle building over 24 hours was about 25% higher on the even split. The authors pointed out that US adults tend to eat the skewed way. Eight people is a small study, but it’s a cheap thing to fix.

For people lifting to build muscle, a 2018 review by Brad Schoenfeld and Alan Aragon suggested about 0.4 g per kg at each of at least four meals. For a 170 pound person that’s about 30 g, four times a day.

Is more than 30 g at a meal wasted?

No. In a 2023 trial, 36 young men did a full-body weight session and then drank 0, 25 or 100 g of milk protein. The 100 g group kept building muscle for more than 12 hours, longer and more than the 25 g group. It was one big dose in young men after lifting, and what it does show is that a big dinner isn’t wasted. Our myth page on the 30 g limit has the full story.

What to do

• Find your plate number in the table or the calculator.
• Start with breakfast. Eggs, plain Greek yogurt or cottage cheese get you most of the way. More on breakfast protein.
• Build each plate around a palm of protein, about 23 to 27 g from chicken, fish or beef.
• If you have kidney disease, your doctor sets your protein number.