Dimethylglycine and Autism Ranking: Limited negative evidence

Suppliers and Availability


DMG supplements are available from a wide range of suppliers including health food stores, chemists and pharmacies, professional health care providers and online stores.

The quality of DMG supplements varies enormously depending on the supplier, the supplement, the ingredients and manufacturing process.


Dimethylglycine is sold as a foodstuff without a prescription in chemists and health food stores. Therefore some providers will have no professional credentials or qualifications.

If you are contemplating taking DMG supplements, you should seek advice from a paediatrician, GP or dietitian. The British Dietetic Association has information about qualified dietitians in the UK.

31 Oct 2017
Last Review
01 Apr 2017
Next Review
01 Apr 2020