Group: E100–E199 (colours)
E100 is a food additive approved by the European Union (E.U.). It is used as a natural colouring agent in food products, and may also be produced artificially. The common name for E100 is Curcumin. E100 is derived from the root of the curcuma (turmeric) herb. Its colour ranges from yellow to red, depending on the surrounding pH. The curcuma herb is a member of the ginger family. E100 has shown by some studies to have anti-carcinogic and antioxidant properties. Some research has indicated that E100 may interfere with the HIV virus. Individuals subjected to very high concentrations have been said to experience side effects of nausea and migraines.