The guide

Which foods are the best protein? Ranked four ways

By GyroscopeUpdated November 15, 20265 sources

The best protein food depends on what you’re short of. If it’s calories, shrimp, canned tuna, cod, turkey and egg whites give you the most protein for the least. If it’s money, dried beans and eggs beat everything else at the store. If it’s quality, eggs, dairy, meat, fish and soy carry every essential amino acid in the amounts adults need. Eggs come closest to winning all three.

Why every “top protein foods” list disagrees

Search for the best protein foods and you’ll get lists that put jerky or pumpkin seeds at the top. They’re usually ranked per 100 g, which rewards dry, dense foods. Beef jerky has 33 g of protein per 100 g, more than chicken breast, but it also has 410 calories in those 100 g. Ranked per serving, a big serving wins. Ranked per calorie, the lean foods win.

Each of these answers a different question, so here are four rankings, each from the same USDA rows, and you can pick the one that fits your problem.

1. Protein per 100 calories

This is the ranking for anyone trying to hit protein without eating a lot more, which is most people losing weight and most people on a GLP-1.

Seafood and poultry take the top, with whey, egg whites and the strained dairy foods close behind. Seitan is the plant food highest on the list. The surprises are at the bottom. Peanut butter, almonds, quinoa and pasta all have 3.7 g of protein per 100 calories, less than a plain bagel (4.0) or a slice of whole wheat bread (4.9). They’re fine foods, but they aren’t protein foods. Every food is in the sortable table on the per-calorie calculator, and our lean protein or just more food page shows the same list as the calories it takes to reach 30 g.

2. Protein per dollar

The Bureau of Labor Statistics tracks US average prices for a handful of protein foods every month. Here’s what a dollar buys at October 2026 prices.

Dried beans give you more than twice the protein per dollar of chicken breast, and a dozen eggs gives you more than chicken too. Ground beef and peanut butter aren’t on the list. BLS’s ground beef price doesn’t say how lean the beef is, so we can’t match it to a protein figure, and the peanut butter series stopped in 2017. The cost calculator turns these into your whole day.

3. Completeness: does it carry every essential amino acid?

Your body can’t make nine of the amino acids in protein, so they have to come from food. This ranking scores each food by its scarcest one, as a share of what adults need per gram of protein, from USDA’s amino acid data.

Every animal food scores 100, and so do soy, black beans, chickpeas, quinoa and oats. Grains and nuts fall behind, all short on lysine: rice at 80, peanut butter at 68, whole wheat at 60 and pasta at 50. Our complete protein page charts all nine amino acids for each food, and plant combos shows which pairs fill the gap.

4. Digestibility: how much you absorb

Completeness counts what’s in the food. DIAAS, the score FAO recommended in 2013, also counts how much of each amino acid you absorb. The best published table pools pig studies of protein ingredients, from Laure Herreman and colleagues in 2020.

It’s scored against the pattern for young children, which is stricter than the adult one, so an adult would score higher on every row. The order is what’s useful: casein, pork, egg and potato at the top, then soy and whey, then pea, and grains last.

The all-rounders

Few foods rank well on every list. These come closest.

Eggs are the closest thing to a best protein food: cheap, complete, highly digestible and in the middle on calories. Chicken and tuna win on calories. Beans win on price and bring fiber, and a cup of them costs about 230 calories for 15 g of protein, which is why they work best next to a leaner food. Prices are BLS US averages for October 2026, and “not tracked” means BLS doesn’t publish a price for it.

How these rankings are worked out

Protein and calories are USDA FoodData Central’s SR Legacy records, one per food, the same rows every tool on this site uses. Grams per 100 calories is protein divided by calories times 100. Cost is the BLS price divided by the protein in that unit. The amino acid score is each food’s lowest essential amino acid per gram of protein, divided by the adult pattern from FAO’s 2013 report, capped at 100. DIAAS values are published numbers, never worked out here. Where USDA’s own records disagree, like the two canned tuna and firm tofu rows, the per-calorie calculator names the one used.