Can you build muscle on a vegan diet? Absolutely — plenty of strength athletes do. Can you do it while managing IBS and eating low FODMAP? Also yes, though it takes a little more planning. Here's how to put on lean muscle on a plant-based, gut-friendly diet.
The two things that build muscle
Muscle growth comes down to two levers: a progressive resistance-training stimulus, and enough total protein spread across the day. Neither requires animal products. What plant-based eaters need to watch is total protein intake and a good spread of amino acids, since most individual plant proteins are slightly lower in one or more essential amino acids.
The low FODMAP challenge
Here's where IBS complicates things. Many classic plant protein sources — lentils, chickpeas, large servings of beans, and most protein powders containing inulin or sweeteners — are high FODMAP. Lean on these and you risk the bloating and discomfort that derails training.
Reliable low FODMAP protein sources include firm tofu, tempeh, rinsed canned lentils in small portions, edamame, peanuts, pumpkin seeds, oats, quinoa and a certified low FODMAP protein powder.
Where protein powder fits
A daily shake is one of the easiest ways to top up protein without adding FODMAP load. Blissful Brown Rice & Raw Cacao is FODMAP Friendly certified and made from just organic brown rice protein and organic raw cacao. Combine a rice protein like this with pea-based sources across the day and you cover your amino acid bases. That Protein is the UK's only certified low FODMAP vegan protein — a dependable training-day staple for sensitive guts.
A simple framework
- Train with progressive resistance 3–4 times a week.
- Include a protein source at every meal — tofu, tempeh, oats, a shake.
- Use a shake around training to top up easily.
- Spread protein through the day rather than in one big hit.
- Keep higher FODMAP legumes to small, well-rinsed portions.
New to low FODMAP? Start with our beginner's guide and low FODMAP shopping list.
Browse the full range at thatprotein.com — free UK delivery on orders over £30.
This article is for general information and isn't medical advice. Individual protein needs vary; consult a registered dietitian or your GP for personalised guidance.