Protexin Gut Sponge 1.5kgProtexin Gut Sponge 1. 5kg Protexin Gut Sponge 1. 5kg Gut Sponge is a palatable, peppermint flavoured, nutritional supplement formulated to support hind gut health and encourage the formation of normal droppings. Gut Sponge contains psyllium husks, a prebiotic and valuable energy source for the horse due to its fermentation by the microbiota. This provides safe calories, promotes the growth of friendly bacteria and nourishes the gut lining cells. The