Gluten Free Standardized 900 GDU (Gelatin Digesting Units) Hypo-Allergenic VegetarianNutritional Support for Healthy Digestion and Overall Well-Being. Ultra Bromelain 1500 is a maximum potency supplement. Ultra Bromelain 1500 provides 50% more bromelain than the leading competitor. Ultra Bromelain 1500 supplies 900 GDU per tablet. Ultra Bromelain 1500 is highly concentrated proteolytic enzyme formula. Ultra Bromelain 1500 is delicately processed to maintain potency, purity and nutritional integrity.