Yeah, it would be pretty unbelievable if he was getting everything that he 'needed' for the healthiest diet. However, I put 'needed' in quotes, because it's tough to even establish what that means. I work in research, and we have often joked that if we were locked in the lab, we could just survive by drinking our cell culture media. That's pretty much sugar water, some amino acids, electrolytes, and serum from cow fetuses. So in that respect, this is a science that has been going on for quite some time. Maybe I should send him some culture medium. I probably tastes similar. But with the fetal cow serum, it probably is much healthier, and it keeps in the refrigerator for months.

There are drawbacks: It doesn't keep long after mixing with water, so I still have to make it every day.

Why does he make it everyday? Why doesn't he just freeze down servings and thaw them as needed?

Don't get me wrong; I do think that if we did something similar to this and only ate one 'normal' meal a day, we'd all probably be better off for it. But as a complete replacement, it's total guesswork.

You could replace two meals a day with a huge assortment of more simple concoctions and improve your health.