People make this orange-yellow powder by grinding up annatto seeds. Annatto powder is a flavoring and coloring in Mexican and South American dishes. It's also an ingredient in fabric dyes ...

The Brief: Scientists discovered that the yellow dye in Cheetos can make mouse skin transparent. The dye, tartrazine, is commonly used in foods like Cheetos, Doritos, and Kool-Aid.

The FD&C Yellow No. 5 dye, a common food coloring, was used at a low concentration in the study, and its effects were easily undone, according to the researchers. US NSF.

Studies on food dyes, especially ones like Red Dye 40 (Allura Red), Yellow Dye 5 (Tartrazine), Blue Dye 1 (Brilliant Blue), and Blue Dye 2 (Indigo Carmine) suggest these potential side effects: ...

The study, published in "Science" on Sept. 5, shows how the synthetic yellow dye slowed light enough to render skin translucent when applied to the surface of shaved mice.