The rhubarb diet is a fad diet, originating in the Huangdi Neijing, which is gaining popularity in Western Europe. It is a substitute for boiled rhubarb and milk products (normally milk) for two meals daily. The laxative effect of rhubarb may aid weight loss. Advocates claim that rhubarb increases the effect of milk products, causing the body to store less fat. People who have tried the diet claim they have lost, on average, per month.