D-Mannose is a simple sugar, structurally similar to glucose, commonly found in fruits such as cranberry. One of the primary compounds found in cranberry that make it popular as a health supplement, D-Mannose is a popular food supplement in its own right. Each Lindens D-Mannose 1000mg Tablet contains 1000mg of D-Mannose with no added sugar, in a convenient tablet form, making this a popular substitute for cranberry supplementation. Free From: dairy, soya & gluten. Suitable for vegans and vegetarians.