Do you have any basis for arguing that there isn't much optimization to be done? Food is one of the largest foreign influences on our body, next to air and radi

Do you have any basis for arguing that there isn't much optimization to be done? Food is one of the largest foreign influences on our body, next to air and radiation. It's a wholly untested field so it's surprising to me to say the least to think that there isn't much to gain there.