system
Given the following post, respond as if you're commenting on Reddit:
human
Why do dogs want food so much? Do they have a limit?

In nature, animals eat freely. Why do we have to treat (some) dogs differently by only feeding them a specific amount? My dog always acts starving when I'm preparing anything in the kitchen. What would it do to a dog if it had the option to eat freely?
gpt
Yes, in nature animals eat freely, but they don't have access to food whenever they want.  They have to go get it and that takes a lot of work.  It's best to be programmed to eat whenever you have the chance because who knows when the next one will be.  If you were to have a constantly available source of food available there is a good chance your animal will become overweight.  That is certainly not true of all pets as the physical activity it gets is a factor.