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Overview. 1  Quinine, a bitter tasting powder made from the bark of the cinchona tree, is known mainly for its use in malaria treatment. 2  Tonic water, a bitter liquid sometimes used as a mix for alcoholic drinks, contains only a small amount of quinine compared to quinine medications.
Astaxanthin sources. Astaxanthin-Australian distributor. The richest natural food sources of astaxanthin are red or pink fish, seafoods and algae sourced from the sea. Wild sockeye salmon has the highest concentration, with a 100gm (3.5oz) serving providing 4mg.Other species of salmon provide only one third to one tenth of this dose.roblems with carotenoid supplementation. People consuming diets rich in carotenoids from foods such as fruits, vegetables and wild red or pink-coloured fish and shellfish are healthier and have lower mortality from a number of chronic illnesses (2).