I heard some of this already 30 years ago when I took classes in Nutritional Chemistry. It's a highly complex system which is hard to measure and often highly d

I heard some of this already 30 years ago when I took classes in Nutritional Chemistry. It's a highly complex system which is hard to measure and often highly dependent on the individual. Today we know more about the gut organisms which helps explain some of the variability, but like the brain much of what we think we know is still speculation and often anecdotal. Plus the yuck factor makes experimentation not much fun.