Beta-carotene

Beta-carotene (E160a) is a provitamin A carotenoid responsible for the orange-yellow pigmentation of many fruits and vegetables, including carrots, mangoes, and sweet potatoes. As a food colourant it is used in margarines, dairy products, beverages, and confectionery to produce yellow to deep orange hues. Commercial production uses both extraction from natural plant sources and microbial or chemical synthesis; all forms produce an identical molecule. Being fat-soluble, it requires oil-based or emulsified formulations for water-dispersible food applications.

JECFA evaluated beta-carotene in 1975 and assigned an ADI of "not specified" — no numerical upper limit is considered necessary at dietary additive use levels. This classification reflects the long history of safe human consumption of beta-carotene as a natural food pigment and the absence of toxicological concern at achievable food additive intakes. EFSA does not list a separate ADI for beta-carotene as a food colour additive in the OpenFoodTox 3.0 database.

Beta-carotene is approved as a food colour in the EU, United States, Japan, South Korea, and globally. It serves a dual role as both a natural colourant and a source of vitamin A precursor, converted in the body on an as-needed basis — making it one of the few food colourants with a recognised nutritional benefit. High supplemental doses — distinct from food additive use — have been associated with increased lung cancer risk in heavy smokers in specific clinical trials; this finding does not apply to normal dietary or food-additive level exposure, where beta-carotene is considered safe.