Protein Calculator

Protein Calculator for Vegetarians

Meeting protein targets on a vegetarian diet is entirely achievable but requires more planning than an omnivore diet. Understanding protein quality, combining sources, and knowing the best plant-based options ensures you get enough for your goals.

Ready to Calculate?

Use our protein calculator with these considerations in mind.

Open Protein Calculator

Key Considerations

Plant proteins are generally less bioavailable — aim for 10-20% more total protein to compensate
Eggs and dairy are complete proteins and the easiest vegetarian protein sources
Soy (tofu, tempeh, edamame) is the only plant food with a complete amino acid profile comparable to meat
Combining legumes with grains throughout the day provides all essential amino acids
Leucine content is lower in most plant proteins — this matters for muscle protein synthesis

Specific Adjustments

For Muscle Building

Aim for 1.8-2.4g/kg bodyweight — the upper end compensates for lower plant protein bioavailability. Prioritise eggs, dairy, soy, and protein supplements.

General Health

Aim for 1.2-1.6g/kg bodyweight. This is achievable through normal vegetarian eating with attention to protein at each meal.

Tips for Best Results

1Include protein at every meal: eggs at breakfast, legumes at lunch, tofu or dairy at dinner

2Greek yoghurt (20g protein per 200g) is one of the best vegetarian protein sources

3Whey or casein protein supplements are efficient and vegetarian-friendly

4Tofu, tempeh, and seitan are the highest-protein plant foods per calorie

5Nutritional yeast adds protein and B12 to meals — sprinkle on pasta, rice, or popcorn

Frequently Asked Questions

How much protein can vegetarians get from food?

With planning, 100-150g/day is achievable from food alone. Example day: 3 eggs (18g), Greek yoghurt (20g), lentil curry (25g), tofu stir-fry (30g), cheese (14g) = 107g without supplements.

Do I need to combine proteins at every meal?

No. The "complete protein at every meal" myth has been debunked. Your body pools amino acids throughout the day. Just eat a variety of protein sources across your daily meals.

Is whey protein vegetarian?

Yes. Whey is derived from milk (a dairy product), making it suitable for lacto-vegetarians. It is not vegan. For vegans, pea-rice protein blends offer a comparable amino acid profile.