Will I be able to lose weight with just supplements, without appetite suppressants?

There are so many diet supplement ads these days that, honestly, I don't know which ones to trust.

There are so many types, such as carb cutting, body fat reduction, appetite suppression, and swelling management, but when I look at the reviews, opinions are completely divided.

Some people say it helped a lot because it reduced their appetite, while others say they just wasted their money, so I'm still debating...

If I take supplements along with exercise and a proper diet, will I definitely feel a difference?

especially

A product that really worked

Side effects (palpitations, stomach discomfort, etc.)

Whether or not there is a rebound effect after quitting

I'm honestly curious about things like this!