L-Valine
amino acids
L-Valine is a branched-chain amino acid (BCAA) essential for muscle protein synthesis, energy production, and tissue repair. It plays a crucial role in maintaining nitrogen balance and supporting athletic performance and recovery.
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Benefits
Dosage
Typical Dose
2-5g daily
Upper Limit
15g daily
Timing
With meals or pre/post-workout for athletic benefit
Forms & Bioavailability
Free-form powder
Excellent absorption; rapidly enters bloodstream
Capsules
Good absorption; convenient dosing
BCAA complex
Good; often combined with leucine and isoleucine for synergistic effect
Side Effects
Interactions
Research Summary
L-Valine has demonstrated efficacy in promoting muscle protein synthesis and reducing exercise-induced fatigue, particularly when combined with leucine and isoleucine. Research supports its use in athletic performance enhancement and recovery, though individual responses vary. Evidence suggests benefits for muscle maintenance in ageing populations and those undergoing physical rehabilitation.
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The Bottom Line on L-Valine
L-Valine is well-researched with strong evidence supporting its primary benefits.It is most commonly used for muscle protein synthesis and growth and exercise recovery and reduced fatigue. As with any supplement, individual results vary. Start with the lower end of the dosage range and assess for 4-8 weeks before adjusting.
About Our Research
This profile is compiled from peer-reviewed research published on PubMed, the NIH Office of Dietary Supplements, and established nutritional science databases. Dosages reflect clinically-studied amounts from human trials where available. We update profiles as new research emerges. This is not medical advice — consult a healthcare professional before supplementing.
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Goal Guides for L-Valine
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