Food under-studied in Western medicine

It occurred to me this week as I was speaking with a doctor that FOOD is extremely under-studied in modern Western medicine. I had bought a bottle of "Perfect Food" (http://www.amazon.com/gp/product/B000GWKA2U) and was told that only a couple of the ingredients have been studied/researched by Western medicine and proven to be helpful for your health.

What a silly thing. Why would good old fashioned food (and herbs...) that has been around since the dawn of time be less studied/researched than modern, human created drugs?

What does everything seem to come back to in regards to health in the U.S.?

$$.

What is it going to take to get our priorities straight? To make it so that money is not always the driving factor in every health situation in the U.S.?