Soylent isn't a "diet" product. Therefore it contains 2400 calories, and doesn't compromise on any macronutrients (fats, protein, carbs) for the sake of creating a "diet" product. If you're looking for existing commercial analogues, it's much closer to Ensure (for example).<p>That said, it's attracted quite a crowd of haters--who, it seems, would like nothing more than for Rhinehart et al. to be repeating mistakes that would be obvious to anyone who had done an hour of research on the history of nutritional drinks...