What is exante Low Sugar Mango Smoothie? Smooth, creamy and oatally delicious, our Low Sugar Mango Smoothie is gluten-free and made from real oat flour. With a fresh, fruity flavour, you can enjoy the rich mango taste with zero guilt. This fruity meal replacement shake is both gluten-free and high in protein and fibre. How to enjoy an exante low sugar mango smoothie? Whether you are looking to control your calorie intake or for a nutritious diet shake, the best meal replacement shakes are protein and vitamin-enriched supplements to healthy, balanced diets.