This is your brain on pizza
If you're one of the naysayers who think that pizza, which was clearly invented to advance the common good, couldn't possibly have deleterious effects, well, you might want to reconsider.
"When we think of addiction, we most often think of alcohol, drugs, and gambling; I wouldn’t necessarily put pizza in the same category of those things, but there are similarities," Neabore said. "If you take someone who is addicted to heroin, whether they’re doing it or you show them a picture of it, in an MRI you would see it light up on the brain."
It's not just a thought experiment; neuroimaging of obese people shows an altered reward response characteristic of addiction, and other researchers have warned of the negative consequences that come with dismissing food addictions.