BODYDATA
Supplements

Beta-Alanine

Evidence ratingModerate

Raises muscle carnosine levels, buffering fatigue during high-intensity exercise. Meta-analyses confirm the largest benefit for 1–4 minute high-intensity efforts (intervals, middle-distance events). The skin tingling (paresthesia) after dosing is harmless.

An ingredient with growing research

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Effects reported in research

Improved performance during 1–4 minute high-intensity exercise

Enhanced endurance in interval training, HIIT, and middle-distance events

Increased muscle carnosine for hydrogen ion buffering (delays fatigue)

Dosage & timing

  • 3.2–6.4 g/day.
  • Split into doses of 0.8–1.6 g to minimize paresthesia.
  • Allow 4–6 weeks for muscle carnosine levels to rise.

Cautions

  • •Paresthesia (skin tingling/flushing) may occur 30–60 min after dosing — harmless, and reduced by splitting doses or using sustained-release formulas.
  • •Limited benefit for efforts under 60 s or over 4 minutes.

Supporting research

Meta-analysis

Effects of β-alanine supplementation on exercise performance: a meta-analysis

Amino Acids, 2012

β-alanine supplementation significantly improved exercise performance during high-intensity efforts lasting 1–4 minutes. Effects were most pronounced for 60–240 second exercise bouts. Mechanism: elevated muscle carnosine levels buffer hydrogen ion accumulation during exercise.

View study details

Last checked: 2026-06-23