← Product name guide
TMG and Betaine HCl: not the same
Both are called "betaine", but they are different substances used for different reasons.
| Betaine Hydrochloride (Betaine HCl) | Trimethylglycine (TMG, Betaine Anhydrous) | |
|---|---|---|
| What it does | Adds acid to the stomach for a short time | A methyl donor; it adds no acid |
| May be used for | Supporting digestion where stomach acid is low, often with pepsin | Supporting methylation and healthy homocysteine levels |