Stack Genius ingredient guide
Trimethylglycine
Trimethylglycine, also called betaine, is an amino-acid derivative and methyl donor found in some performance, methylation, and homocysteine-positioned supplements.
What is Trimethylglycine?
Trimethylglycine, often abbreviated TMG, is also known as betaine. It is a methyl donor, which means it can participate in methylation chemistry in the body. In supplement labels, TMG may appear in sports, methylation, homocysteine, liver-support, or general wellness formulas.
People usually look for TMG for one of two reasons: performance/body-composition marketing or methylation and homocysteine support. Those are different contexts. A useful page should explain the ingredient without pretending that every TMG product is right for every methylation or performance goal.
A better TMG product clearly says trimethylglycine or betaine anhydrous, gives the amount per serving, and does not bury it in a methylation blend with folate, B12, choline, and B6 unless the individual amounts are clear. A weaker one leans on “methylation support” language while hiding the actual dose and form.
Why people look up Trimethylglycine
- TMG and betaine often refer to the same supplement ingredient, but labels may use either name.
- Look for betaine anhydrous/trimethylglycine form, amount per serving, and companion methylation nutrients.
- Methylation-positioned supplements can overlap with medications, lab interpretation, and high-dose B-vitamin stacks.
Common forms and label context
Specific product labels may use form, extract, strain, or blend language around Trimethylglycine. The safest comparison starts with the Supplement Facts panel and the full ingredient list.
Practical guidance
What to know before adding Trimethylglycine
Evidence snapshot
NIH ODS performance context and medical-reference material support cautious education: betaine/TMG is real biochemistry, but supplement claims can outrun what a casual user should assume.
Common misunderstanding
The common mistake is treating “methylation support” as automatically better. More methyl donors are not always the right answer, especially when someone is already taking methylfolate, methyl-B12, choline, or complex B formulas.
Tracking note
Track whether the label says TMG, trimethylglycine, or betaine anhydrous; the amount per serving; and overlap with folate, B12, B6, choline, SAMe, creatine, or homocysteine-positioned products.
Safety note
TMG may be inappropriate to treat as a casual add-on in people with complex medical histories, lab-driven methylation routines, or medication use. GI effects and changes in lab markers may matter for some users.
Dosing & Timing
This guide does not prescribe a dose. Compare TMG products by form, milligrams per serving, serving schedule, and whether companion methylation nutrients are individually disclosed.
Safety and interaction context
A qualified clinician should review TMG use with kidney disease, cardiovascular risk management, abnormal homocysteine labs, pregnancy or nursing, medication use, or complex methylation/B-vitamin stacks.
How to track Trimethylglycine in Stack Genius
Track the exact product, serving size, timing, and reason you added it. That makes it easier to review whether Trimethylglycine appears once, shows up across multiple products, or belongs in a routine you still want to keep.
Trimethylglycine FAQ
What is Trimethylglycine?
Trimethylglycine, also called betaine, is an amino-acid derivative and methyl donor found in some performance, methylation, and homocysteine-positioned supplements.
Why do people track Trimethylglycine in supplements?
People track Trimethylglycine to understand where it appears across supplement labels, blends, and daily routines. Stack Genius helps keep that product and ingredient context organized.
What type of supplement ingredient is Trimethylglycine?
Trimethylglycine is grouped under Amino Acids & Derivatives in the Stack Genius ingredient library. Category context can help compare related ingredients, but the product label still matters most.
Sources
- NIH ODS - Dietary Supplements for Exercise and Athletic PerformanceFederal professional fact sheet with cautious discussion of betaine and performance-supplement context.
- Mount Sinai - BetaineMedical-center supplement monograph for betaine context and safety framing.
- NCCIH - Using Dietary Supplements WiselyFederal guidance on supplement claims, safety, and clinician review.
Track products by ingredient in Stack Genius
Use Stack Genius to connect supplement products back to ingredients, spot overlap, and keep your routine organized.