What is Vita Fiber™ Powder? Vita Fiber™ is widely known as a high fibre powder, which is a perfect sugar or flour substitute, often used in baking. As an example, many people use this functional ingredient in cake & muffin recipes to make them sugar free. Vita Fiber™ Powder also functions as a dietary fibre, prebiotic, & low-calorie sweetener, as well as helping you feel fuller for longer. It is the perfect ingredient to aid a healthy diet & support weight management. Vita Fiber™