[Aerroon]

>And why is having quotas for healthy foods extreme?

Because there is no such thing as a universally healthy food. "Healthy food" is a buzzword used to make people feel good about the food choices they make that (usually) don't taste that great.

The primary concern with healthy eating is to eat enough and in a decent balance of a laundry list of things: protein, fats, (carbs), vitamins, minerals and probably some more. You can't eat all of them at once either, because some of the vitamins and minerals can end up blocking each other from absorption. Missing any of these for long enough in large enough quantities (or large enough imbalances) is going to cause health issues.

Some people like calling foods that have few calories and little nutritional value as "healthy", but the value those foods provide comes from limiting the average person from eating something else. Eating a cucumber doesn't give you much, but you're less likely to have those fries after you've had the cucumber. But you certainly wouldn't be fine with only eating cucumbers long-term.