[hvmonk]

Is there any long term effect medical study about this product?

I think our body has organs which releases various gastric juices to digest the food we eat. It is not only about how much calorie/protein one is consuming, there are also some useful by-products which helps in overall functioning of the body as well. A very simple analogy is only drinking fruit juice instead of eating them raw. We are not taking in fibers which helps in digestion, slow decomposition and good bowl movement.

I am very skeptical about approaches like this where we measure our food just in terms of calories, vitamins, protiens and then consume them directly in that format.

[scarlac]

That would be extremely interesting, indeed.

Soylent has said they were looking into having studies done, but I don't recall what the details were or when it was planned for.

While anecdotal evidence isn't enough, it's fairly common to see people posting results of their blood work after a few months of Soylent. But I'd personally love to see some more details and unbiased tests in an "official" study.