Function & Characteristics: Flavour enhancer. Guanylic acid and guanylates do not have the specific umami taste but strongly enhance many other flavours, thereby reducing the amounts of salt needed in a product. Used in many products. Acceptable daily intake (ADI): None determined. Guanylates may not be used in products intended for children under 12 weeks. Dietary restrictions: Guanlyic acic and guanylates are generally produced from yeasts, but partly also from fish. They may thus not suitable for vegans and vegetarians