how to fat burners know?

[brightstar]

As far as I can tell, fat burners work to boost your metabolism so you’ll burn through more calories and, therefore, stored energy. How do they ensure that you’ll burn through fat and not another kind of tissue like muscle?

[ChristySmiles]

I think you can only burn through muscle through exercise. I mean a fat burner can help you burn fat when you get your heartrate up, but they aren't going t work by themselves. So you really shouldn't worry about a fat burner burning through muscle. As long as you're not over-exercising and you've got fat to spare...I think you'll be fine