Benefits
14% higher EAA, 15% higher BCAA with whey protein
14% higher EAA, 15% higher BCAA with whey protein: acute ingestion of 25 g whey protein concentrate (WPC) with P3 Hydrolyzer led to 14% greater levels of essential amino acids (EAA) and 15% greater levels of branched-chain amino acids (BCAA) vs WPC + placebo. The trial measured blood amino acid levels at rest only, with no exercise. It did not measure muscle protein synthesis, strength or performance, so a muscle benefit cannot be claimed from it.
Plant protein optimization — 295% more leucine
In standard in vitro gastric digestion experiments, P3 Hydrolyzer released 295% more leucine and 225% more BCAAs from plant protein. Plant proteins typically have reduced digestibility and bioavailability vs animal-based proteins — P3 Hydrolyzer addresses this fundamental limitation. The amino acid release enhancement is particularly meaningful for vegan/vegetarian athletes.
100% more amino acids from whey (in vitro)
Under simulated in-vitro gastric conditions, P3 Hydrolyzer released 100% more amino acids from whey protein and 228% more BCAAs from plant protein compared to other enzyme products. Demonstrates BIO-CAT's enzyme blend is more effective at liberating amino acids than competing enzyme formulations.
Lower ghrelin and higher rated fullness after one meal
Lower ghrelin and higher rated fullness after one meal: levels of the hunger hormone ghrelin were 12% lower in the WPC + P3 Hydrolyzer group vs WPC + placebo, and self-reported fullness and satiation were rated higher. How much people ate at a later free meal did not differ between groups, so this is a short-term hormone and questionnaire finding, not a measured change in food intake.
Pea protein clinical validation
Pea protein clinical validation: acute microbial protease supplementation increased net postprandial plasma amino acid concentrations after pea protein ingestion in healthy adults. Established proof-of-concept for plant protein optimization that the subsequent whey protein study extended.
Not tested in people using GLP-1 medications
No trial has tested P3 Hydrolyzer in people taking GLP-1 medications such as semaglutide or tirzepatide. The idea that raising blood amino acids helps preserve muscle during appetite suppression is untested for this product and is not an established benefit.
Versatile — works with plant and animal protein
Versatile — works with plant and animal protein: P3 Hydrolyzer optimizes both plant protein (pea, faba, brown rice) and whey protein bioavailability. The dual versatility supports formulation flexibility — works in multiple protein categories. Featured in MuscleTech Plant Protein (250 mg dose per scoop).
Mechanism of action
Proteolytic enzyme amino acid liberation
P3 Hydrolyzer's three proteases (Acid Protease, Fungal Protease A from A. oryzae, Protease AM from A. melleus) work synergistically to cleave protein into peptides and free amino acids. Different proteases target different peptide bonds — the combination achieves more complete hydrolysis than single-enzyme products.
Enhanced gastric protein digestion
Proteins begin digestion in the stomach via pepsin and HCl. P3 Hydrolyzer's acid protease component works in the acidic gastric environment, supplementing endogenous pepsin. Enhanced gastric digestion produces more peptides and amino acids ready for intestinal absorption — accelerating the overall digestion timeline.
BCAA-specific liberation
P3 Hydrolyzer specifically enhances liberation of branched-chain amino acids (leucine, isoleucine, valine) — the BCAAs essential for muscle protein synthesis. Leucine specifically triggers mTOR pathway activation. In laboratory digestion tests (not in people), more leucine was released from plant protein with the enzyme than without it.
Anabolic window optimization
The post-exercise anabolic window (typically 2 hours after exercise) is when muscle protein synthesis is maximally responsive to amino acid availability. Whether faster amino acid appearance leads to greater muscle protein synthesis was not measured in either trial, so this remains a proposed mechanism rather than a demonstrated one.
Satiety hormone modulation
In the whey protein trial, post-meal ghrelin was 12% lower with the enzyme than with placebo, and rated fullness was higher. A faster rise in blood amino acids may trigger fullness signals sooner. Food intake at a later meal was not changed, and no weight or muscle outcome was measured.
Clinical trials
Randomized double-blind placebo-controlled crossover clinical trial evaluating acute oral microbial protease co-ingestion with whey protein on postprandial plasma amino acid concentrations, appetite, and satiety in healthy adults. Published in The Journal of Nutrition 2025 (Huang et al., Churchward-Venne). Multi-institution collaboration.
Healthy adults receiving 25 g whey protein concentrate (WPC) with P3 Hydrolyzer vs placebo. Crossover design.
WPC + P3 Hydrolyzer led to 14% greater levels of essential amino acids (EAA) and 15% greater levels of branched-chain amino acids (BCAA) vs WPC + placebo. Hunger hormone ghrelin levels were 12% lower in WPC + P3 group; food intake at a later ad libitum meal did not differ between groups. Self-reported sensations of fullness and satiation were greater during the WPC+P3 intervention. Established whey protein optimization alongside the prior pea protein evidence.
Randomized double-blind placebo-controlled clinical trial evaluating acute microbial protease supplementation effects on net postprandial plasma amino acid concentrations after pea protein ingestion in healthy adults. Published in The Journal of Nutrition 2024 (Paulussen et al.). Foundational plant protein evidence.
Healthy adults receiving pea protein with P3 Hydrolyzer or placebo.
Acute microbial protease supplementation increased net postprandial plasma amino acid concentrations after pea protein ingestion. Established proof-of-concept for plant protein optimization that extended to whey protein in the subsequent 2025 trial. International patent application filed based on findings.
In vitro gastric digestion experiments comparing P3 Hydrolyzer to other enzyme products for amino acid and BCAA liberation from whey and plant proteins. Foundation for the human clinical trial design and commercial positioning.
Not applicable — in vitro simulated gastric digestion experiments.
P3 Hydrolyzer released 100% more amino acids from whey protein and 228% more BCAAs from plant protein vs other enzyme products. Specifically released 295% more leucine and 225% more BCAAs from plant protein. Established P3 Hydrolyzer's superiority over competing protease enzyme formulations. Foundation for the MuscleTech Plant Protein commercial application.