Achiote

Achiote refers to the small reddish seeds of the Bixa orellana tree, native to tropical Latin America. The seeds yield a yellow-to-red pigment (annatto, E160b) that is widely used to color cheeses, butter, snacks, and rice dishes, and is also used as a mild aromatic spice in Latin American and Filipino cooking.

The primary pigments in achiote are the carotenoids bixin and norbixin. Because annatto is used in very small amounts as a colorant, it contributes negligible energy and has no established direct effect on digestion at culinary doses.

Allergy and sensitivity

Annatto is not among the major regulated food allergens, but isolated case reports and small case series describe IgE-mediated reactions including urticaria, angioedema, and rare anaphylaxis after exposure to annatto-colored foods. On ingredient labels it may appear as "annatto," "annatto extract," "bixin," "norbixin," "E160b," or simply "color," depending on jurisdiction. People who suspect a reaction to brightly colored cheeses, cereals, or snacks should check labels and consult a clinician for allergy testing. Systemic symptoms — throat tightness, breathing difficulty, swelling of the lips or tongue, or fainting — require emergency care, not just follow-up testing.

Use and tolerance

At the levels used in commercial food coloring and home cooking, annatto extract is permitted by the U.S. FDA as a color additive for foods generally, in amounts consistent with good manufacturing practice. People without a known annatto allergy can use it freely as a spice or natural colorant; those with a history of reaction to it should treat it as a personal trigger and avoid foods that list it.