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    Glycine


    Glycine with E-number 640 is a simple amino acid, which is both a natural part of the diet and which is formed naturally in the body. Glycine is also marketed as a dietary supplement.

    As an excipient, glycine is a colourless, crystalline solid that is used as a flavour enhancer and as an acidity regulator. Glycine has a slightly sweet taste but must not be used as a sweetener.

    There is no limit to how much glycine may be used.