BurnBox itself is not fully vegan, but some of the individual components within it are. The plant-based elements, such as the Fiber Shake and Electrolyte Booster, are completely vegan-friendly. However, the Bone Broth does contain chicken-derived ingredients, making it non-vegan.
If you follow a strict vegan diet, you can choose to omit the Bone Broth and still benefit from the fasting support of the other products.
You can find a full ingredient list here.