like how is that proven? what if sometimes it’s better to eat lots of ice cream or sleep in
Yeah its too vague, but when it comes to consumable products, they’re generally made so you want more of it than is good for you. Hence the discomfort with not consuming the thing
The products are probably not bad on purpose, but the use of addictive substances or replacing costly (good) with cheap alternatives, is a great way to reduce production costs and to increase sales.
Reduce vegetable components, increase sugar and salt. Fill up with water, adjust viscosity. Similar taste, much cheaper, more addictive and worse for your body.
Because it’s probably the safest and cleanest way for you or other people.
What you wrote as examples are not really ways of things IMO, but anyway: They are good ‘ways’ sometimes. For example, eating lots of ice cream a few times is not bad. Nobody will say that. Doing that often is bad for you, your dentist, and at some amount also for your doctor, your family and the social system. Sleeping in can be good, and is good, and is done regularly - for what else do we have weekends for? It’s just not good for yourself to oversleep a few times and get fired for being irresponsible.
And for examples in regards of actual ways to do things, your mechanic does not skip tightening the screws of your wheels, it would be faster and more comfortable for him, but very bad for you, emergency services, your family, other people on the street and finally himself.