Looking to boost your protein intake without piling on calories? You're not alone. Many fitness enthusiasts and health-conscious individuals seek this perfect balance.
Protein helps build muscle, keeps you feeling full longer, and supports overall health, while keeping calories low helps maintain a healthy weight.
1. Egg Whites
Fluffy, versatile egg whites pack a remarkable protein punch without the fat found in yolks. Each white contains about 3.6g of protein with a mere 17 calories.
Chef Jamie Oliver often recommends egg whites for those watching their cholesterol. They're incredibly adaptable in cooking – whip them into meringues, fold them into omelettes, or add to smoothies for a protein boost.
2. Skinless Chicken Breast
Nutritionists consider chicken breast the gold standard of lean proteins. A 100g serving delivers an impressive 31g of protein with just 165 calories.
Dr. Michael Greger notes that removing the skin dramatically reduces fat content. Marinate it in herbs and lemon juice rather than oil-based sauces to keep it truly low-calorie while enhancing flavour.
3. Non-Fat Greek Yoghurt
Unlike regular yoghurt, Greek varieties undergo straining that removes liquid whey, concentrating the protein. Each 100g portion provides approximately 10g of protein for just 60 calories.
Research from the University of Missouri found Greek yoghurt promotes greater satiety than regular yoghurt. Try it with berries for breakfast or use as a sour cream substitute in savoury dishes.
4. Low-Fat Cottage Cheese
Registered dietitian Susan Bowerman calls cottage cheese a 'slow-release protein gold mine.' With approximately 11g of protein and only 80-90 calories per 100g, it keeps muscle synthesis active while you sleep.
The high casein content digests slowly, providing sustained amino acid release. Sweet or savoury? It works brilliantly both ways – try it with cinnamon and berries or with cucumber and black pepper.
5. Water-Packed Tuna
Swimmers and bodybuilders alike rely on tuna as a convenient protein source. A 100g serving provides an astounding 23g of protein with just 100 calories.
Marine biologist Dr. Sylvia Earle recommends choosing sustainably caught varieties. The omega-3 fatty acids offer additional health benefits beyond the protein content. Mix with Greek yoghurt instead of mayonnaise for a truly low-calorie lunch option.
6. Firm Tofu
Made from condensed soy milk, tofu absorbs whatever flavours you cook it with. Each 100g portion contains 8-10g of protein at just 70-80 calories.
Dr. Walter Willett of Harvard Medical School highlights tofu's complete amino acid profile, rare among plant proteins. The firmer the tofu, the higher the protein content. Try it crumbled into stir-fries or marinated and grilled for maximum flavour absorption.
7. Cooked Lentils
Ancient Romans considered lentils a staple for strength. Modern nutritional science confirms they were onto something – 100g provides 9g of protein and 116 calories. The fibre content creates lasting fullness, according to research by nutritionist Dr. Susan Jebb.
Unlike many beans, lentils cook quickly without pre-soaking. Red varieties break down into creamy textures perfect for soups, while green and brown types hold their shape for salads.
8. Tempeh
Indonesian in origin, tempeh undergoes fermentation that creates a nutty, mushroom-like flavour profile. A 100g portion delivers 20g of protein with 195 calories – higher in calories than some options but extraordinarily nutrient-dense.
Microbiologist Dr. Michael Kuo points to tempeh's probiotics as an additional health benefit. The firm texture makes it excellent for slicing and grilling. Try it crumbled into chilli as a meat alternative.
9. Seitan
Buddhist monks have used seitan as a meat substitute for centuries. This wheat gluten product provides 21g of protein per 100g serving with just 120 calories. Food scientist Harold McGee notes seitan's remarkable meat-like texture comes from its concentrated gluten proteins.
Obviously not suitable for those with gluten sensitivity, but for others, it's a protein powerhouse. Its chewy texture makes it perfect for stir-fries and sandwiches.
10. Shrimp
Tiny nutritional giants, shrimp offer one of the highest protein-to-calorie ratios available. Each 100g serving contains 24g of protein with a mere 99 calories. Marine nutritionist Dr. Rachel Johnson highlights their astaxanthin content, a powerful antioxidant.
The quick cooking time makes them perfect for busy weeknights. Simply steam or grill with lemon and herbs rather than breading or frying to maintain their low-calorie status.
11. Turkey Breast
Not just for Christmas dinner, turkey breast deserves a spot in your regular protein rotation. A 100g portion provides 30g of protein with just 135 calories. Nutritional biochemist Dr. Stuart Phillips recommends turkey as an excellent source of tryptophan, which helps produce serotonin.
Ground turkey breast makes leaner burgers and meatballs than beef. Roast a whole breast on weekends for protein-rich sandwiches throughout the week.
12. Shelled Edamame
Young soybeans harvested before hardening, edamame delivers complete plant protein. Each 100g serving contains 11g of protein and 120 calories. Sports nutritionist Nancy Clark recommends edamame as an ideal recovery snack.
The combination of protein and complex carbs supports muscle repair. Keep frozen shelled edamame on hand for quick protein boosts – they microwave in minutes and can be added to virtually any dish.
13. Skimmed Milk
The fat removal process in skimmed milk concentrates the protein content relative to calories. Each 100ml provides 3.5g of protein with just 35 calories. Endocrinologist Dr. Michael Zemel's research suggests milk proteins may support healthy weight management.
Beyond drinking, use it in protein-boosted porridge or smoothies. The calcium content offers additional benefits for bone health, particularly important during weight loss.
14. Protein Powder
Whether whey or plant-based, protein powders offer maximum protein with minimal calories. A typical scoop provides 20-25g of protein for just 100-120 calories. Sports scientist Dr. Stuart Phillips found whey particularly effective for muscle synthesis. Beyond shakes, try adding unflavoured varieties to porridge, yoghurt, or even soups for a protein boost. Plant-based versions from pea, rice or hemp suit those avoiding dairy.
15. Quark
Popular in Northern Europe but less known elsewhere, quark sits between yoghurt and cottage cheese in texture. Low-fat versions provide 10-12g of protein per 100g with just 60-80 calories.
Nutritionist Rhiannon Lambert praises its versatility in both sweet and savoury applications. The mild flavour adapts to whatever you pair it with. Try it as a protein-rich alternative to cream cheese on bagels or mixed with herbs as a baked potato topping.
