Colorants from natural sources have been well documented however, a comprehensive review of natural colorants, especially marine algae, with their chemicals and health benefits, is scarce. Pigments, phenolic derivatives, proteins and glycosides are among the colorants obtained from marine algae. Marine algae are known for many naturally occurring colour compounds with sensorial and other health improving qualities. Therefore, there is a constant desire to explore possible substitutes for synthetic food colorants. Consumers have a tendency to believe that natural colours are safer than synthetic colours. Colorants give nutritional value to food items in addition to improving its appeal, acceptability and flavor. In numerous food businesses, natural pigments are frequently utilized as food colorants.
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