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Head-to-head evidence comparison — which supplement is right for you?
Creatine wins 3 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
19 of 23 studies with measurable effects showed benefit.
Top outcomes
Verdict
Mostly mechanism / observational
Top outcomes
Shared outcomes (1)
Outcomes where both Creatine and TMG have evidence — compare verdict strength side-by-side.
5g daily
Any time, Post-workout may have slight advantage
Monohydrate powder
2.5-6g betaine/TMG daily (performance studies commonly use ~2.5g; methylation/homocysteine use up to 6g)
with-meals
Betaine anhydrous (TMG)
2-4 weeks
1-2 weeks
First week
2-4 weeks
2-6 weeks
4-8 weeks
4-8 weeks
Throughout use
Risk of Adverse Outcomes in Females Taking Oral Creatine Monohydrate: A Systematic Review and Meta-Analysis
Nutrients (2020) · Meta analysis · n=951
Six hundred and fifty-six studies were identified where creatine supplementation was the primary intervention; fifty-eight were female only studies (9%).
International Society of Sports Nutrition position stand: creatine supplementation and exercise
Journal of the International Society of Sports Nutrition (2017) · Systematic review
Increases strength by 5-15%
Effects of Creatine Supplementation and Resistance Training on Muscle Strength Gains in Adults <50 Years of Age: A Systematic Review and Meta-Analysis
Nutrients (2024) · Meta analysis · n=20
In comparison with a placebo, creatine supplementation combined with resistance training significantly increased upper-body (WMD = 4.43 kg, p < 0.001) and lower-body strength (WMD = 11.35 kg, p < 0.001).
Effects of Betaine Supplementation on Muscle Strength and Power: A Systematic Review.
Journal of strength and conditioning research (2017) · Systematic review
Some improvement in strength/power endpoints
Effects of chronic betaine supplementation on exercise performance: Systematic review and meta-analysis.
Journal of sports sciences (2024) · Meta analysis
Modest benefit on some performance measures
Betaine supplementation fails to improve body composition: a systematic review and meta-analysis.
The British journal of nutrition (2022) · Meta analysis
No significant change in body fat or lean mass
Based on meta-analyses showing 5-15% strength increases. Upper-body improvements 4.43kg, lower-body 11.35kg. Effects plateau at therapeutic doses.
AI-estimated from published studies. Interpret as directional guidance.
Creatine has a higher evidence score (9.5/10 vs 5.8/10) and wins in 3 of 3 categories.
For build strength & muscle, Creatine has a higher relevance score (98 vs 55).
No known interactions between Creatine and TMG have been documented in our database. However, always consult a healthcare provider before combining supplements.