Tortoise Diet Mazuri® Tortoise Diet is a high fiber diet designed for dry land herbivorous tortoises such as gopher, sulcata and Galapagos tortoises. This diet may be used with other herbivorous reptiles as well. High fiber level. Contains natural vitamin E. Extruded pellet form – Minimizes wastage and creates a more natural feeding environment. Complete nutrition – No vitamin or mineral supplementation needed. Natural source antioxidants – No ethoxyquin. Available in a 25 pound bag.