FD&C Yellow #5 Lake (Tartrazine).
The insoluble pigment form of tartrazine. Same concerns as the dye version, used for tablet coating. The insoluble pigment form of tartrazine, used to colour tablet coatings yellow. It is there for appearance and carries no nutritional role.
Reviewed March 2026
- Category
- General
- Also filed under
- Provides yellow tablet coating
What FD&C Yellow #5 Lake (Tartrazine) is, and what it does.
- Does it work
- It suits a coating that needs a stable yellow across a batch. Anyone who reacts to azo colours will want to spot it by name, which EU labelling rules make straightforward.
- How much to take
- There is no amount to take. It is used at the level a coating needs for shade, and no daily figure is on record because it is not an active.
- Time to feel it
- The pigment stays in the coating and passes through largely undissolved. It is there for shade, not as an active, so it has no onset of its own.
- The first dose
- For most people the pigment stays in the coating and passes through largely undissolved. People sensitive to azo colours can react within hours of a single exposure.
- With regular use
- It is barely absorbed and does not build up, so weeks of use change nothing nutritionally. Its steady job is holding the coating colour even.
- How well tolerated
- Same concerns as tartrazine dye. EU warning label required.
- How it feels
- Nothing for most. Possible reaction in sensitive individuals.
- The overlooked benefit
- In the EU this colour has to be declared by name on the label, so anyone who reacts to azo colours can spot it and choose a differently coated product.
The proof, claim by claim.
These words describe the research, not the molecule's worth. Research strength is how much work stands behind one claim, and it is never a product score.
- Less bioavailable than dye form
- Same sensitivity concerns
No pairing data for FD&C Yellow #5 Lake (Tartrazine) yet.
Nothing on file for FD&C Yellow #5 Lake (Tartrazine), either from a combination trial or from settled biochemistry. When either lands, it appears here with its source.
Stitching two separate single-ingredient studies into a pairing is the one thing this engine will not do. When a study of the combination itself holds up at source, it lands here with its citation.
No invented synergy. Where actives were studied on their own rather than together, each shows on its own evidence, never a combined effect no trial measured.
Research strength. Research strength says how much work stands behind the combination. It is never a product score.
Independent record. Every finding is cited to a named trial, dated, and never written by the brand.
24 pairings are live across the library today. Checked 25 August 2026.
Talk to a doctor before taking FD&C Yellow #5 Lake (Tartrazine) if any of these apply to you: Can trigger reactions in aspirin-sensitive individuals, May exacerbate asthma, EU requires warning label. These are flags to check first, not effects FD&C Yellow #5 Lake (Tartrazine) is known to cause.
Not medical advice. Show the label to your pharmacist.FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.
