Pectin and Guar Gum
Increasing the viscosity of food, which slows down gastric emptying, is another approach to improve dumping symptoms (Table 1) and is achieved by ingesting up to 15 g of guar gum or pectin with each meal. Short-term studies have shown a potential efficacy of this approach.[26-32] However, the palatability and tolerability of these supplements is poor. Moreover, these substances are usually not readily available as pharmaceutical products at sufficiently high doses