Milk Fuel (formerly known as Schmilk) is a powder that you mix with milk to make a complete meal.
It has just the calories you want, from 1200 to 2000 calories a day depending on how much milk you add.
It has all the nutrients you need.
It tastes a lot like cereal milk.
It is gluten-free, dairy-free, soy-free, nut-free, and vegan.
Feel free to mix it with non-dairy milk instead.