I am with you on the damage caused by alcohol. The sugar studies are anecdotal and have not been scientifically studied. I believe there is value to moderating sugar intake but not to the level some suggest. The sugar in an apple or carrot is very concentrated, too. The young growing brain is more susceptible to the BDNF effects of sugar since the brain is still growing and maturing.

Please tell us more about your son's concussions and recovering. As I said, adolescence is a tough time for a concussion injury.