NOW Certified Organic Acacia Fiber Pure Powder is a natural, pure soluble dietary fiber produced from the gum of the Acacia tree. Scientific studies have shown that as part of the diet, soluble fiber can help to encourage healthy digestion. Acacia Powder is also known to be an excellent prebiotic, as it supports healthy gut flora. Because it actually slows fermentation and decreases gas and bloating, Acacia Powder is well tolerated by most. Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.