High-Protein Low-Carb Foods
A higher-protein, lower-carbohydrate approach can support muscle building, fat loss, and metabolic health. This guide summarizes evidence-based ranges from the International Society of Sports Nutrition (ISSN) and NIH research, with specific food recommendations backed by USDA nutrient data.
Recommended Protein Intake by Goal
Protein needs vary by activity level and goal. The RDA of 0.8 g/kg/day is a minimum to prevent deficiency — not an optimal target for active individuals.
| Goal | Protein (g/kg/day) | Example (75 kg person) |
|---|---|---|
| General health | 1.0–1.2 | 75–90 g/day |
| Active / recreational exercise | 1.4–1.6 | 105–120 g/day |
| Muscle building | 1.6–2.2 | 120–165 g/day |
| Fat loss (preserving muscle) | 2.3–3.1 | 172–232 g/day |
| Older adults (65+) | 1.2–1.5 | 90–112 g/day |
What Counts as "Low-Carb"?
There is no single definition. These thresholds are from NIH clinical literature (StatPearls).
| Category | Carbs per Day | Notes |
|---|---|---|
| Moderate low-carb | 100–130 g | Easiest to sustain; preserves exercise performance |
| Low-carb | Under 130 g | Most common therapeutic threshold |
| Very low-carb | 50–100 g | Partial ketone production |
| Ketogenic | 20–50 g | Full nutritional ketosis |
Best High-Protein Foods
These foods deliver high protein with minimal carbohydrates. Values are per standard serving from USDA FoodData Central.
| Food | Serving | Protein (g) | Carbs (g) |
|---|---|---|---|
| Chicken breast, cooked | 4 oz (113 g) | 35 | 0 |
| Turkey breast, cooked | 4 oz (113 g) | 34 | 0 |
| Salmon, cooked | 4 oz (113 g) | 25 | 0 |
| Tuna, canned in water | 4 oz (113 g) | 26 | 0 |
| Sirloin steak, lean | 4 oz (113 g) | 28 | 0 |
| Shrimp, cooked | 4 oz (113 g) | 24 | 1 |
| Pork tenderloin | 4 oz (113 g) | 26 | 0 |
| Whole eggs | 2 large | 12 | 1 |
| Greek yogurt, plain | 1 cup (227 g) | 23 | 9 |
| Cottage cheese, low-fat | ½ cup (113 g) | 14 | 5 |
| Parmesan cheese | 1 oz (28 g) | 10 | 1 |
| Tempeh | 4 oz (113 g) | 21 | 9 |
| Firm tofu | 4 oz (113 g) | 10 | 3 |
| Edamame, shelled | 1 cup (155 g) | 18 | 14 |
Foods to Limit
These foods are high in carbohydrates and can quickly exceed daily targets on a low-carb approach.
| Food | Serving | Carbs (g) |
|---|---|---|
| Bagel | 1 medium | 56 |
| White rice, cooked | 1 cup | 45 |
| Pasta, cooked | 1 cup | 43 |
| Regular soda | 12 oz can | 39 |
| Raisins | ¼ cup | 31 |
| Baked potato | 1 small | 30 |
| Banana | 1 medium | 27 |
| Orange juice | 1 cup | 26 |
| Sweetened yogurt | 6 oz | 26–33 |
| Granola bar | 1 bar | 25–35 |
Protein Timing and Distribution
Research supports spreading protein evenly across meals rather than concentrating it in one sitting. Each meal should deliver 20–40 g of protein (or 30–40 g for adults over 65) to exceed the leucine threshold needed to stimulate muscle protein synthesis. Space protein-rich meals at least 3 hours apart. For 140 g daily protein across 4 meals, target roughly 35 g per meal.
Who Should Be Cautious
- People with kidney disease (CKD stage 3+) — impaired ability to excrete protein metabolites
- Type 1 diabetics — insulin doses must be adjusted; risk of diabetic ketoacidosis on very low-carb
- Type 2 diabetics on insulin or SGLT2 inhibitors — medication adjustment required
- Pregnant or breastfeeding — minimum 175 g carbs/day recommended for fetal development
- People with a history of eating disorders — restrictive diets can trigger relapse
- Anyone on blood pressure medication — low-carb often lowers BP; dosing may need reduction
Sources
Note: This page provides general nutrition information only. It is not medical advice. Consult a physician or registered dietitian before making significant dietary changes, especially if you have a medical condition or take medication. Full disclaimer.