What are some effective ways to fast or lose unwanted weight naturally?

Natalie Scottsworth questioned:

I’m sixteen and I’m not obese- or flush stout for including the intention of topic- but my stomach is a tad solid. I be inflicted including a habitual, balanced diet but I don’t get the opportunity to exercise as greatly as I’d be fond of to. So what i’m wondering is if here are approximately effective( but natural) traditions to drop consequence or at smallest amount tense up my stomach lacking apt pale. I want to be healthy and fit for my age. I’ve been told including the intention of fasting is effective-but i don’t admit?