A synthetic red dye used to color supplement tablets. Purely cosmetic.
FDA says yes. EU requires warning labels about possible behavioral effects in children.
Some studies suggest a small subset of children may be sensitive. Evidence is mixed. Supplement amounts are negligible.
Typically less than 1-2 mg per tablet. A can of red soda has 30-40 mg.
Click through to the studies bar for the evidence base.
See the dosing guide below.
Compare formats before buying.
Some ingredients build up over weeks. Others act fast.
The compound effect of consistent dosing.
Check the cautions section if you have a pre-existing condition.
Some ingredients you feel. Others just work in the background.
Lake form is insoluble. Used for solid tablets. Regular form dissolves in water.
Rare but possible. Aspirin-sensitive individuals may be more likely to react.
Some studies link high intakes to behavioral effects in children. The debate has been going on for decades.
Insoluble form of Allura Red AC bonded to aluminum substrate. Provides stable red color without dissolving into the product.
Red 40 Lake has emerging evidence.
Synthesized through azo coupling of sulfonated naphthalene derivatives, then precipitated onto aluminum hydroxide.
Red 40 Lake interacts with other supplements and meds. The analyzer flags interactions, dose mismatches, and timing collisions across your whole list.
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.