If you're looking for methylation and performance support, this product hits the clinical sweet spot. A single three-tablet serving delivers 3,000mg of **Trimethylglycine (TMG)**, landing squarely in the 2,500–6,000mg range studied in research on homocysteine reduction and exercise performance.

At 3,000mg daily, you're at the dose shown to support power output and body composition in athletic performance trials — without crossing the 4,000mg threshold where some studies have observed elevated LDL cholesterol. The betaine anhydrous form is the standard used in clinical research.

The tradeoff is pill burden. You need three tablets per serving, and the label suggests up to three tablets twice daily (6,000mg). The product is also highly sensitive to moisture, so you'll need to keep the bottle sealed tightly between uses.

BioStacks
NOW

TMG Betaine 1,000 mg, 100 Tablets

3 Tablets · 33 servings · $0.52/serving

iHerbAmazon

Best for

Muscle

Ingredients (1)

Trimethylglycine (TMG)

100%

Dose

3000 mg

Target

2500–6000 mg

Form

—

Other Ingredients (6)

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Coating (unspecified)Coating

Generic tablet coating declaration where the label does not itemize the coating's components; modern aqueous film coatings are typically cellulose-based (HPMC) with a plasticizer

Croscarmellose SodiumDisintegrant

Cross-linked cellulose derivative used as a superdisintegrant

Hydroxypropyl CelluloseBinder

An inert modified-cellulose polymer used as a binder, film-former, and disintegrant.

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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