yes! sorry if my question is wrong formulated.This is my web content and i still dont have adsense on site
Of course is a good niche, do you have already adsense account or you plan to get approved with this site?
Depends the traffic source, when you know the traffic source than you can make A/B test to see what works best, products related with big commissions or adsense. Good luck!
I think the competition is hard on diets and weightloose, so you can have a hard time getting enough traffic to your site.
Post in the right section and you'll get more responses. This is the guidelines and compliance adsense section