Leucine is a unique essential amino acid that acts as a primary trigger for muscle protein synthesis. Consuming an adequate amount per meal to meet the 'leucine threshold' (typically 2.5 to 3 grams) is crucial for maximizing muscle repair and growth. Data is sourced from the USDA FoodData Central.
| Food Source | Complete Protein | ||||
|---|---|---|---|---|---|
| Almonds | Nuts & Seeds | 579 | 21 | 1.4 | |
| Beef, Ground (80% lean, cooked) | Meat | 242 | 23 | 1.8 | |
| Beef, Top Sirloin Steak (cooked) | Meat | 215 | 33.1 | 2.2 | |
| Cheddar Cheese | Dairy & Eggs | 404 | 23 | 2 | |
| Chia Seeds | Nuts & Seeds | 486 | 17 | 1.2 | |
| Chicken Breast (skinless, cooked) | Poultry | 151 | 31 | 2.5 | |
| Cod (Atlantic, cooked) | Fish | 99 | 23 | 1.9 | |
| Cottage Cheese (1% fat) | Dairy & Eggs | 80 | 11 | 1.05 | |
| Edamame (cooked) | Plant-Based | 121 | 11.9 | 0.75 | |
| Egg (whole, large, cooked) | Dairy & Eggs | 131 | 12.6 | 1.12 | |
| Egg Whites (cooked) | Dairy & Eggs | 52 | 10.9 | 0.8 | |
| Feta Cheese | Dairy & Eggs | 264 | 14.2 | 1.4 | |
| Greek Yogurt (nonfat, plain) | Dairy & Eggs | 59 | 10.3 | 1.03 | |
| Greek Yogurt (whole milk, plain) | Dairy & Eggs | 95 | 8.78 | 0.878 | |
| Ground Turkey (93% lean, cooked) | Poultry | 176 | 27 | 2.2 | |
| Hemp Hearts (shelled hemp seeds) | Nuts & Seeds | 553 | 31.6 | 2.2 | |
| Kidney Beans (cooked) | Plant-Based | 127 | 8.7 | 0.7 | |
| Lamb Chop (loin, cooked) | Meat | 282 | 25 | 2 | |
| Lentils (cooked) | Plant-Based | 115 | 9 | 0.65 | |
| Mozzarella (whole milk) | Dairy & Eggs | 299 | 22 | 1.9 | |
| Oats (Rolled, cooked with water) | Grains | 71 | 2.5 | 0.18 | |
| Parmesan Cheese (grated) | Dairy & Eggs | 420 | 35 | 3.4 | |
| Pork Loin (lean only, cooked) | Meat | 172 | 30 | 2.1 | |
| Quinoa (cooked) | Grains | 120 | 4.4 | 0.4 | |
| Salmon (Atlantic, cooked) | Fish | 200 | 22 | 1.8 | |
| Scallops (cooked) | Seafood | 111 | 21 | 1.6 | |
| Seitan (Vital Wheat Gluten) | Plant-Based | 370 | 75 | 5.2 | |
| Shrimp (cooked) | Seafood | 99 | 24 | 2 | |
| Soy Protein Isolate | Supplement | 384 | 88 | 6.8 | |
| Tempeh | Plant-Based | 192 | 20 | 1.4 | |
| Tilapia (cooked) | Fish | 128 | 26 | 2.1 | |
| Tofu (extra firm) | Plant-Based | 90 | 10 | 0.8 | |
| Whey Protein Isolate | Supplement | 373 | 83 | 8.1 |