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Head-to-head evidence comparison — which supplement is right for you?
B. coagulans vs Pea Protein: they're closely matched on evidence (5 vs 5.5/10); they work on different things and are often used together, not either/or. Take the 60-second quiz for a pick tailored to your goals.
B. coagulans and Pea Protein are closely matched across evidence, studies, and safety.
Verdict
Mostly mechanism / observational
Top outcomes
Verdict
Mostly mechanism / observational
Top outcomes
1-2 billion CFU (spores) daily. The IBS-D and gas/bloating trials used 2 x 10^9 CFU/day of MTCC 5856 (LactoSpore); the GBI-30 6086 (BC30) studies used 1 x 10^9 CFU/day.
any
Tablet or capsule delivering a named strain — MTCC 5856 (LactoSpore) for IBS, GBI-30 6086 (BC30) for the exercise and amino-acid claims
20-40g per serving (aim for ~2-3g leucine; ~0.7-1g protein/lb bodyweight total daily)
any
Pea protein isolate (often blended with rice protein)
NOT ESTABLISHED. Single small study; the two protein studies disagree on which amino acids changed, and neither had a placebo arm.
If you take both anyway, take them together. Do not treat this as a way to close the gap between plant and animal protein quality.
4-12 weeks
4 weeks
n/a
n/a
4-12 weeks
Acute-days
Acute
Outcome-Specific Efficacy of Different Probiotic Strains and Mixtures in Irritable Bowel Syndrome: A Systematic Review and Network Meta-Analysis.
Nutrients (2023) · Meta analysis
B. coagulans MTCC 5856 (SUCRA 96.9%) and B. coagulans Unique IS2 (SUCRA 92.6%) were among the most effective probiotics for improving abdominal pain
Probiotics and synbiotics in chronic constipation in adults: A systematic review and meta-analysis of randomized controlled trials.
Clin Nutr (2022) · Meta analysis
Probiotics increased stool frequency overall (SMD 0.71, 95% CI 0.37-1.04, P<0.00001), with Bifidobacterium lactis driving the effect
The effects of Bacillus coagulans MTCC 5856 on functional gas and bloating in adults: A randomized, double-blind, placebo-controlled study.
Medicine (Baltimore) (2023) · Rct · n=70
GSRS indigestion score fell from 8.91 to 3.06 in the probiotic group versus 9.42 to 8.43 on placebo; between-group P<0.001
Effects of Whey and Pea Protein Supplementation on Post-Eccentric Exercise Muscle Damage: A Randomized Trial.
Nutrients (2020) · Rct · n=92
No significant pea-vs-whey difference in recovery outcomes
Resistance training increases myofibrillar protein synthesis in middle-to-older aged adults consuming a typical diet with no influence of protein source: a randomized controlled trial.
The American journal of clinical nutrition (2025) · Rct · n=27
Increased muscle protein synthesis with training + pea protein
Real ileal amino acid digestibility of pea protein compared to casein in healthy humans: a randomized trial.
The American journal of clinical nutrition (2022) · Rct · n=15
Pea protein is well digested, though slightly below casein
Both B. coagulans and Pea Protein are closely matched — the best choice depends on your specific health goals.
B. coagulans and Pea Protein may work well together: NOT ESTABLISHED. Single small study; the two protein studies disagree on which amino acids changed, and neither had a placebo arm. If you take both anyway, take them together. Do not treat this as a way to close the gap between plant and animal protein quality.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.