My greatest concern over the approach Soylent is taking is the "one size fits all" mentality.

If the company would put forth an application for biometrics/ some sort of personalized formula calculation, I would feel better about this.

People have different biochemistry, allergies, metabolisms, and nutrient deficiencies. Hell, even different climates and geography cause changes in the way the human body works. It just seems like a huge issue was overlooked in not taking into consideration these variables.

I have a friend whose SO and himself are working on a similar project, however she is a nutritionist and knows the pitfalls. They are trying to take into account the person to person variability and make personalized formulas based on individual needs. I would be much happier with this approach.