Michele 9 on this site advised that "A widely used additive is "canthaxantin." Canthaxantin can cause eye problems in humans." Does anyone know what sort of eye problems are specific to this chemical?
Get Free Paleo Recipes Instantly
It causes canthaxanthin retinopathy. Essentially deposits of canthaxanthin in the retina. Seems that people who took supplement canthaxanthin for self-tanning purposes were the folks to had issues with canthaxanthin retinopathy. Probably not an issue for those who consume a bit in food as an additive.
Here's Google on it: https://www.google.com/search?q=canthaxanthin+retinopathy