Artificial colors

Is blue 1 clean?

No. Our rubric flags blue 1 under artificial colors (evidence: regulatory action). Petroleum-based dye in the FDA's 2025 phase-out plan.

Artificial colors Regulatory action

Penalty 30 of 100 · Balanced and Strict profiles

Petroleum-based dye in the FDA's 2025 phase-out plan.

Source: FDA and HHS, plan to phase out petroleum-based synthetic dyes in the US food supply (April 22, 2025)

Also on labels as

brilliant blue, fd&c blue no. 1, e133

Low-FODMAP status

Coming soon: whether it is low-FODMAP and at what serving.

Related ingredients

Red 40
Yellow 5
Yellow 6
Blue 2
Green 3
Red 3
Citrus Red 2
Orange B

From Gutlog's clean ingredient rubric, version 2026.11.0. Ask your assistant "is this clean?" with a photo of the label and Gutlog checks every ingredient. General information, not medical advice.