What is Glycine?

The short answer

Glycine is one of the small units that make up protein, found in food and made in the body.

1 source
Status as of October 4, 2026
How we source
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By Ellum EditorialUpdated October 11, 2026AI use

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What it is

Type: Amino acid

Regulatory status

Supplement How we label status

As of October 4, 2026, Glycine is sold in the US as a dietary supplement.

See Glycine in the Index →

Federal (FDA): Dietary supplement (DSHEA)

References

Sources as of October 4, 2026

Government source: www.govinfo.gov/content/pkg/CFR-2025-title21-vol3/xml/CFR-2025-title21-vol3-sec172-812.xml