L-Leucine

The biologically active form of leucine used in supplements and naturally found in proteins
Amino Acids Essential Amino Acids Research: Extensive

Scientific Name

L-Leucine

Classifications

Absorption: intestinal
Source: fermentation-or-synthesis
Type: essential-amino-acid

Benefits

  • Supports muscle protein synthesis
  • Promotes muscle recovery after exercise
  • May help preserve lean muscle mass
  • Supports metabolic health
  • Functions as anti-caking agent in supplements
  • May support blood sugar regulation

Specific Properties

  • Most potent BCAA for stimulating protein synthesis
  • Activates mTOR pathway for muscle building
  • Essential amino acid that must be obtained from diet
  • Rapidly absorbed and utilized by muscles
  • Key trigger for muscle protein synthesis

Safety Notes

Generally recognized as safe when used as directed. Well-tolerated even at higher doses. May cause mild digestive discomfort in some individuals. Those with maple syrup urine disease should avoid leucine supplementation.

Related Products

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About Leucine

An essential branched-chain amino acid (BCAA) that plays crucial roles in protein synthesis, muscle building, and metabolic regulation

Back to Leucine

Forms of L-Leucine

L-Leucine Powder

Pure L-leucine in powder form for sports nutrition and supplement use

Amino acids Essential amino acids Research: Extensive

L-Leucine Capsules

L-leucine in convenient capsule form for precise dosing

Amino acids Essential amino acids Research: Extensive

Natural L-Leucine

L-leucine derived from natural fermentation processes using plant-based substrates

Amino acids Essential amino acids Research: Moderate