Artificial DyeHigh Concern — Recommended to Avoid

Is Blue 1 (Brilliant Blue FCF) Safe to Eat?

A water-soluble synthetic triarylmethane dye derived from petroleum distillates. One of the primary colors used to create bright blues, greens, and purples in food.

Quick Safety Facts: Blue 1 (Brilliant Blue FCF)

Category

Artificial Dye

Safety Rating

high Risk

Common Aliases & E-Numbers on Labels
blue 1brilliant bluefd&c blue no. 1e133
Foods Commonly Containing This
Sports drinks (Gatorade/Powerade)CandyCereals (Lucky Charms)FrostingSodas

Why Blue 1 (Brilliant Blue FCF) Is a Health Concern

Synthetic food dyes are linked to hypersensitivity, asthma triggers, and neurobehavioral disorders (ADHD) in children. Can cross the blood-brain barrier and has been restricted or banned in multiple European countries.

Documented Physiological Risks & Health Effects

ADHD / Hyperactivity
Asthma flare-ups
Allergic reactions
Cellular toxicity

Safer Alternatives to Blue 1 (Brilliant Blue FCF)

When shopping, look for clean-label packaged foods that use these natural substitutes instead:

Spirulina extract or butterfly pea flower extract for natural blue coloring

Browse our complete Clean Swap directory →
Recommended Reading

Want a deeper clinical breakdown of this additive?

Read our peer-reviewed investigation and brand testing report.

Read Article

Frequently Asked Questions

How do food manufacturers hide Blue 1 (Brilliant Blue FCF) on ingredient lists?

Manufacturers often use alternative chemical or scientific terms such as blue 1, brilliant blue, fd&c blue no. 1. These technical aliases allow brands to comply with FDA labeling laws without alarming consumers who look for familiar names.

Is Blue 1 (Brilliant Blue FCF) banned in other countries?

Many synthetic dyes, chemical dough conditioners, and preservatives like Blue 1 (Brilliant Blue FCF) are either banned or require mandatory health warning labels in the European Union, the UK, or Japan under the precautionary principle, whereas the US FDA relies on legacy GRAS designations.

How can I spot Blue 1 (Brilliant Blue FCF) without memorizing all aliases?

CleanLabel uses on-device camera vision to read the printed ingredient deck on any package in 3 seconds. It automatically flags Blue 1 (Brilliant Blue FCF) and thousands of other hidden chemicals without requiring a barcode.

Other Artificial Dye Additives to Watch

Spot Blue 1 (Brilliant Blue FCF) on Physical Labels Instantly

CleanLabel reads printed ingredients directly with your camera — no barcode needed. Instant safety scores on iOS.

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