I am generally against banning things that can harm our bodies and minds, but I think that we need to regulate a lot more aggressively. There is no doubt that ultra-processed foods are unhealthy, and although a bit hyperbole maybe, the relationship between regular and ultra-processed food is analogous to the relationship between coca leaf and crack cocaine. Although both are technically the same substance, the means of delivery makes a huge difference on how immediately gratifying and habit-forming they are.
I think we should make regulation that enforces stronger separation between food and beverages that we consume as part of a healthy diet, and candy and psychoactive substances that we consume for fun. We should acknowledge that a significant and growing fraction of the population are forced to actively fight their inner voices telling them to consume these things whenever they go to a supermarket, which they have to because we all need to eat. Alcohol, tobacco and ultra-processed foods have no place in food stores, but should be confined to dedicated outlets.