Betaine Anhydrous (Trimethylglycine)

What It Is:
A naturally occurring compound found in beets and spinach that enhances hydration, strength, and power output.

What It’s Used For:

• Increases muscle power and endurance

• Improves hydration and cell volume

• Supports methylation (cellular function)

Typical Dose:

• 2.5–5 g daily, often in pre-workout formulas

Side Effects:

• Minimal; may cause a mild fishy body odour in rare cases

Why It’s Rated 3.5/5:
Moderately strong research — improves training volume and power in repeated studies.