How about a cut-sleen buttershake for breakfast?

These days, with things like Bulletproof Coffee and other things, consuming fat for energy is all the rage. I don't have time to prepare breakfast, and going out on an empty stomach makes me feel sick, so I'm looking for a quick snack. Then I saw Cutslin' Butter Shake and was intrigued by its buttery flavor and filling effect.

I'm dieting, but for me, staying energized and not feeling hungry until lunch is more important. Anyone who's tried the Cutslin Butter Shake? Is it filling enough to get me through the morning without any issues? I'm curious about the taste. I'm a little concerned about the butter content.

And when making a Cutslin Buttershake, please tell me if it's better to mix it with water, milk, or soy milk. If it's a product that's easy to slurp down on a busy morning, I'll definitely order it.