One of the biggest problems is portion control. Over time it's very easy to lose sight of how much food we need to survive. The body is very efficient. It's very easy to consume more calories than needed each day and that adds up very quickly. It is very easy to get used to overeating. So much so that what we may see as a normal portion is way more than what we need. Curving the behavior that was built over a lifetime is often impossible.Add to that that we can't just quit eating then it's very very hard to change.
example:
If you consume an additional 250 calories. Let's say a few extra servings of pasta a week. To burn those calories, you'd need to walk for about 70 minutes. Most people won't even think about doing the extra effort. Do that enough times and you're overweight.
edest t1_iu33buh wrote
Reply to Eli5: How are people unhappy about being overweight, that is something you can change like 80% of the work is changing your diet I'm decently healthy and most healthy food taste good by biggerthenuFR
One of the biggest problems is portion control. Over time it's very easy to lose sight of how much food we need to survive. The body is very efficient. It's very easy to consume more calories than needed each day and that adds up very quickly. It is very easy to get used to overeating. So much so that what we may see as a normal portion is way more than what we need. Curving the behavior that was built over a lifetime is often impossible.Add to that that we can't just quit eating then it's very very hard to change.
example:
If you consume an additional 250 calories. Let's say a few extra servings of pasta a week. To burn those calories, you'd need to walk for about 70 minutes. Most people won't even think about doing the extra effort. Do that enough times and you're overweight.