PERFORMANCEMIXED
Betaine Anhydrous (Trimethylglycine)
Small signal for power output. Fine to stack — not a headliner.
EFFECTIVE DOSE
2.5 g/day
HOW IT WORKS
Methyl donor and osmolyte; may support cellular hydration and homocysteine metabolism.
WHAT THE EVIDENCE SUPPORTS
- Small strength/power signal in trained lifters
WHAT TO LOOK OUT FOR
- Doses under ~2 g in a pre-workout blend are unlikely to matter.
- Not a nitric oxide agent.
SIDE EFFECTS
- Fishy body odor at high doses (rare)
SOURCES
Reviewed 11/1/2025 · Brawn Supplement Reviewer
Educational content. Not medical advice. Talk to a licensed professional before starting any supplement, especially if you take medications or have a medical condition.