By food type · Evidence-based guide
Top 10 Protein Foods Foods
Protein builds and repairs muscle, makes enzymes and antibodies, and helps you feel full. Most adults in wealthy countries get enough total protein, so the bigger question is the 'protein package': the fats, fiber, sodium, and other compounds that come with it. Harvard's Nutrition Source and large cohort studies suggest that getting more protein from fish, poultry, beans, nuts, and soy, and less from red and especially processed meats, is associated with lower risk of heart disease, diabetes, and early death. The ten foods below emphasize those healthier packages. Older adults may benefit from spreading protein across meals to help preserve muscle.
Salmon
Protein plus omega-3s and vitamin D.
Why it helps
Salmon provides about 22 grams of protein per 3.5 ounces, along with EPA and DHA omega-3s and vitamin D. Regular fish intake is associated with lower coronary death in a JAMA review that weighed benefits against contaminants. [1][2][3]
⚠️ Cautions
Fish allergy. Salmon is low in mercury, but follow FDA fish advice in pregnancy.
Sardines
Calcium-rich, low-mercury canned fish.
Why it helps
Canned sardines with bones are one of the few non-dairy sources of significant calcium, plus omega-3s and vitamin B12. Small, short-lived fish are among the lowest in mercury on the FDA's 'best choices' list. [2][4][5]
⚠️ Cautions
Canned fish can be high in sodium; choose low-salt versions. People with gout may need to limit sardines, which are high in purines.
Eggs
Complete protein with choline and B12.
Why it helps
An egg provides about 6 grams of high-quality protein, plus choline and vitamin B12. Harvard's Nutrition Source finds that moderate egg intake, about one a day, is not associated with higher heart disease risk in most healthy people. [6][7]
⚠️ Cautions
Egg allergy is common in children. Undercooked eggs carry salmonella risk for pregnant people and the immunocompromised.
Greek Yogurt
Dairy protein with live cultures.
Why it helps
Plain Greek yogurt contains roughly 15-17 grams of protein per serving, about twice regular yogurt. Yogurt was associated with less long-term weight gain in large cohorts. [8][9]
⚠️ Cautions
Milk allergy. Flavored versions often carry a lot of added sugar.
Lentils
Plant protein with fiber and iron.
Why it helps
Lentils provide about 9 grams of protein and 8 grams of fiber per half cup, plus folate and iron. Harvard's Nutrition Source notes that swapping red meat for legumes is associated with lower heart disease risk. [10][3][11]
⚠️ Cautions
Can cause gas; build up gradually. Pair with vitamin C foods to improve iron absorption.
Tofu and Tempeh
Complete plant protein from soy.
Why it helps
Soy foods provide all essential amino acids. Harvard's Nutrition Source reviews evidence that soy can modestly lower LDL cholesterol and that moderate soy intake is safe, including for breast cancer survivors. [12][13][14]
⚠️ Cautions
Soy allergy. Soy may affect absorption of levothyroxine; take thyroid medication consistently and separately.
Chicken and Turkey (Skinless)
Lean animal protein to replace red meat.
Why it helps
Skinless poultry is lean, high in protein, and in Harvard analyses replacing red or processed meat with poultry was associated with lower risk of several chronic diseases. [3][9]
⚠️ Cautions
Cook to 165°F (74°C) to prevent foodborne illness. Processed turkey products can be high in sodium.
Beans (Black, Kidney, Pinto)
Affordable protein and fiber.
Why it helps
Beans supply about 7-8 grams of protein and plenty of fiber per half cup. The Food Habits in Later Life study found legume intake among the strongest dietary predictors of survival in older adults. [15][16]
⚠️ Cautions
Gas initially. Advanced kidney disease may require potassium and phosphorus limits. Never eat raw or undercooked kidney beans.
Edamame
Whole young soybeans packed with protein.
Why it helps
Edamame are whole soybeans, providing complete protein, fiber, folate, and vitamin K. They are a convenient way to include soy in its least-processed form. [12][17]
⚠️ Cautions
Soy allergy. Rich in vitamin K; keep intake consistent on warfarin.
Cottage Cheese
High-protein, slow-digesting dairy.
Why it helps
Cottage cheese is rich in casein, a slowly digested protein useful for satiety and muscle maintenance, particularly for older adults trying to meet protein needs. [3][4]
⚠️ Cautions
Often high in sodium; choose lower-sodium versions. Milk allergy.
Quick-Reference Summary Table
| Food | Key nutrient | Serving |
|---|---|---|
| Salmon | Protein, EPA/DHA, vitamin D | 3-4 oz cooked, twice weekly |
| Sardines | Protein, calcium, omega-3s | 3 oz canned |
| Eggs | Protein, choline, B12 | 1-2 eggs |
| Greek Yogurt | Protein, calcium, probiotics | 3/4 cup |
| Lentils | Protein, fiber, folate, iron | 1/2 cup cooked (9 g protein) |
| Tofu and Tempeh | Protein, calcium (if calcium-set), isoflavones | 3-4 oz |
| Chicken and Turkey (Skinless) | Protein, niacin, B6 | 3-4 oz cooked |
| Beans (Black, Kidney, Pinto) | Protein, fiber, potassium | 1/2 cup cooked |
| Edamame | Protein, fiber, folate | 1/2 cup shelled (about 9 g protein) |
| Cottage Cheese | Casein protein, calcium | 1/2 cup (about 12-14 g protein) |
The Bottom Line
Focus on the healthiest protein packages: fish twice weekly, plus beans, lentils, soy, eggs, yogurt, and poultry, with less red meat and minimal processed meat. Most adults need about 0.8 g of protein per kg of body weight daily, and older adults may benefit from slightly more. People with chronic kidney disease should ask their clinician about protein targets.
Related Reading on HealAtlas
Recipes to try
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Sources
- Mozaffarian D, Rimm EB. Fish intake, contaminants, and human health. JAMA. 2006. PMID 17047219
- U.S. FDA: Advice about Eating Fish
- Harvard T.H. Chan Nutrition Source: Protein
- NIH Office of Dietary Supplements: Calcium fact sheet
- NIH Office of Dietary Supplements: Omega-3 Fatty Acids fact sheet
- Harvard T.H. Chan Nutrition Source: Eggs
- NIH Office of Dietary Supplements: Choline fact sheet
- Harvard T.H. Chan Nutrition Source: Yogurt
- Mozaffarian D, et al. Changes in diet and lifestyle and long-term weight gain in women and men. N Engl J Med. 2011. PMID 21696306
- Harvard T.H. Chan Nutrition Source: Lentils
- NIH Office of Dietary Supplements: Iron fact sheet
- Harvard T.H. Chan Nutrition Source: Straight Talk About Soy
- Harvard T.H. Chan Nutrition Source: Tofu
- NIH NCCIH: Soy
- Darmadi-Blackberry I, et al. Legumes: the most important dietary predictor of survival in older people. Asia Pac J Clin Nutr. 2004. PMID 15228991
- Harvard T.H. Chan Nutrition Source: Legumes and Pulses
- NIH Office of Dietary Supplements: Vitamin K fact sheet