# Listing of Color Additives Exempt From Certification; Spirulina Extract
> **Food and Drug Administration** · Final amendment; order. · Published 2026-02-06 · Effective 2026-03-23 · 91 FR 5291
## Document
- **Document number:** 2026-02314
- **Category:** fda-food
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 91 FR 5291
- **CFR reference:** 21 CFR 73
- **Publication date:** 2026-02-06
- **Effective date:** 2026-03-23
- **HHS docket:** Docket No. FDA-2024-C-3384
## Abstract

The Food and Drug Administration (FDA or we) is amending the color additive regulations to provide for the expanded use of spirulina (Arthrospira platensis) extract as a color additive in human foods generally (except for infant formula, certain foods subject to regulation by the U.S. Department of Agriculture, and foods for which standards of identity have been issued under section 401 of the Federal Food, Drug, and Cosmetic Act, unless the use of the added color is authorized by such standards) at levels consistent with good manufacturing practice (GMP), to lower the heavy metal specifications for lead, arsenic, and mercury, and to add a specification for cadmium. We are taking this action in response to a color additive petition (CAP) submitted by GNT USA, LLC (GNT or petitioner).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/02/06/2026-02314/listing-of-color-additives-exempt-from-certification-spirulina-extract)
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