BCAA 5,000 — 5,000 mg, Powder, 11.65 oz (30 Servings) — Supports Muscle Recovery & Endurance*
LifeSource Vitamins BCAA 5,000 combines clinically studied leucine, isoleucine, and valine in a 2:1:1 ratio with glutamine to support muscle recovery, endurance, and strength.* This watermelon-flavored powder promotes post-workout performance. Produced in FDA-registered, GMP-certified facilities and 3rd-party lab tested for purity, potency & label accuracy.*
Research Promise: At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. In addition, we reference reviews from 39 leading health organizations and insights from 20 top global universities to ensure our guidance aligns with credible science.*
Clinically Studied Benefits (with research)
• BCAAs support muscle recovery* — Reduce DOMS post-exercise (NIH/PMC — Fouré A, 2018).
• BCAAs reduce muscle damage* — Lower CK and damage biomarkers (NIH/PubMed — Hsu Y, 2024).
• Leucine stimulates protein synthesis* — Activates mTOR for growth (NIH/PMC — Kimball SR, 2016).
• BCAAs enhance post-exercise recovery* — Faster return of strength (NIH/PMC — Martínez-Puig D, 2025).
• BCAAs improve endurance* — Delay fatigue in prolonged exercise (NIH/PMC — Gualano B, 2014).
• BCAAs reduce perceived fatigue* — Systematic review confirms lower RPE (NIH/PMC — Thomas DT, 2024).
• BCAAs preserve lean mass* — Support during calorie restriction (Harvard — Nutrition Source).
• Glutamine supports immunity* — Maintains immune health in athletes (Cleveland Clinic — 2023).
• BCAAs promote energy production* — Contribute to ATP supply during exercise (NIH/PMC — Gualano B, 2014).
• BCAAs may support weight management* — Linked with fat metabolism (Cambridge Univ — Qin LQ, 2015).
Additional Studies Showing Promising Benefits*
• May support mental focus* — Reduce serotonin-related fatigue (NIH/PMC — Gualano B, 2014).
• May enhance recovery time* — Meta-analyses support faster recovery (NIH/PMC — Thomas DT, 2024).
• May support liver health* — BCAA benefits in hepatic stress (NIH/PMC — Muto Y, 2019).
• May promote gut health* — Glutamine improves barrier integrity (NIH/PMC — van der Hulst R, 2017).
• May improve insulin sensitivity* — Glucose metabolism modulation (NIH/PMC — Doi M, 2014).
• May reduce soreness* — Additional DOMS reduction data (NIH/PMC — Fouré A, 2018).
We monitor research from the world’s leading institutions — including Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge University, Oxford, Stanford, Yale, MIT, the University of Florida, Oregon State University – Linus Pauling Institute, Tufts, Boston University, Cornell, Columbia, and Ohio State — to ensure our guidance remains aligned with the highest standards of credible science.*
Brief Benefit Bullets
• Promotes faster muscle recovery and less soreness*
• Helps reduce muscle damage biomarkers*
• Boosts muscle protein synthesis for growth*
• Improves exercise endurance and reduces fatigue*
• Helps preserve lean mass during calorie restriction*
• Supports energy production and ATP availability*
• Provides immune system support post-workout*
• Backed by multiple human trials and reviews*
3rd-party lab tested for purity & potency
Mix 1 scoop (11 g) with 8–12 oz water or juice and consume before, during, or after exercise. For general use, take daily with a meal. If pregnant, nursing, taking medications, or have a medical condition, consult your physician.*
• Serving Size — 1 scoop (11 g)
• Servings Per Container — 30
• Form — Powder (Watermelon Flavor)
• Free From — Non-GMO, Gluten-Free, Vegan*
• Quality — Third-party tested for identity, potency & purity
L-Leucine — Activates mTOR to stimulate protein synthesis (NIH/PMC — Kimball SR, 2016).
L-Isoleucine — Supports energy during workouts (NIH/PMC — Gualano B, 2014).
L-Valine — Preserves lean mass (Harvard Nutrition Source).
L-Glutamine — Supports immune recovery (Cleveland Clinic — 2023).
LifeSource Vitamins — Proudly American — Since 1992
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
LifeSource BCAA 5,000 — 5,000 mg Powder (30 servings). Supports recovery, endurance & strength. Non-GMO, vegan, 3rd-party tested. Clinically Studied Ingredients — NIH/PubMed!*
