Sugar activates the same receptors as heroin. Which, isn't surprising since simple sugars are what fueled much of our earlier ancestors. I personally am not a fan of this fact and would rather frame it as heroin activates the same receptors as sugar.

That said, the sugar industry is a mess. A number of documentaries have been made about it, how they have bribed government officials, had the ear of presidents, and have killed journalists.

The problem with sugar is that it's in just about everything. Sugar, by itself, is not a bad thing so long as you don't overdue it but....a single coke is overdoing it.