How about testing traffic with health offers? There are too many affiliate network who run health/diet offers.
Just make sure you host landing page somewhere else or it will ban your account.
AdSense will give you penny for that, but that is also fine when the traffic is not targeted, but if you’ve targeted quality traffic with real followers(which is hard to get), then you can surely try affiliate networks.
Read more blogs, forums and you will get some ideas. You can’t learn all things on one day. Also I’m not running healthy related offers, so can’t say more on that.