Evidence-based·Last reviewed May 30, 2026·How we grade evidence

Broad Bean Protein

Botanical

Useful mainly for people wanting a plant-based protein to help meet daily protein needs.

Quick decision guide

May help most

people wanting a plant-based protein to help meet daily protein needs

Common dosing range

amount needed to help reach ~0.8–1.6 g protein/kg/day

When to expect effects

Weeks (as part of overall protein intake)

Watch out for

People with G6PD deficiency should avoid fava-derived products (favism risk)

What is it

Broad bean (faba bean) protein is a plant protein concentrate or isolate made from Vicia faba, used as a vegan protein ingredient in powders and foods. It offers a legume amino acid profile, relatively high in lysine but lower in methionine, similar to pea protein. Evidence is largely general protein-intake data rather than faba-specific clinical trials.

Is it worth it for you?

Use this as a quick fit check, not a diagnosis.

Worth considering if

you need a vegan or allergen-friendly protein source
you want an alternative to soy or pea protein
you tolerate legumes well

Probably skip if

you have G6PD deficiency
you already meet protein targets from food
you expect benefits beyond protein intake

Evidence at a glance

meeting dietary protein needs

Limited Evidence
Effect
Depends on baseline intake
Best fit
vegans, vegetarians, or others with insufficient protein intake
Time
Weeks

Evidence for 1 use

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

meeting dietary protein needs

Supplement benefit
Limited Evidence

Faba bean protein supplies a legume amino acid profile and can contribute to daily protein requirements, supporting muscle maintenance when total intake is adequate. Faba-specific outcome trials are scarce, so its role is inferred from broader plant-protein evidence.

Effect size
Depends on baseline intake
Time to effect
Weeks
Best fit
vegans, vegetarians, or others with insufficient protein intake
Less likely
people already meeting protein targets

Bottom line: A practical vegan protein source for meeting protein needs, with little faba-specific clinical data.

How to take it

1. Typical dose
enough to help reach daily protein targets, e.g. 15–30 g per serving
2. Timing
any time; around training if used for muscle support
3. With food
either, often blended
4. How long to try
ongoing as a dietary staple

What to track

total daily protein intake
GI tolerance
satiety

Safety

Know the common side effects, key cautions, and who should avoid it.

Common side effects

bloatinggas

Serious risks

  • hemolytic reaction (favism) in G6PD-deficient individuals

Who should avoid it

  • people with G6PD deficiency
  • people with legume allergy

Pregnancy & breastfeeding

Likely fine as a food-grade protein for those without G6PD deficiency; choose tested products and consult a clinician.

Choosing a product

What to look for on the label — and what to be skeptical of.

Look for

states protein content per serving and amino acid profile
clear faba/Vicia faba sourcing
third-party tested for contaminants

Be skeptical of

implying superiority over other proteins without data
muscle-building guarantees beyond adequate protein intake
unverified 'clean' or detox marketing

References by claim

meeting dietary protein needs

Weijzen et al., 2023PubMed (2023) link

Itkonen et al., 2024PMC (2024) link

Track Broad Bean Protein with Pilora

Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.

Coming to App Store
Evidence-based·Last reviewed May 30, 2026·Evidence current as of May 30, 2026·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.