After all, what's the point in losing 20 lbs in 2 months if you just gain it back anyways (and with a now sluggish metabolism from the huge calorie deficit)? (coachcalorie.com)
Over time toxins accumulate in our bodies resulting in sluggish metabolism and a weakened immune system. (progressivemedicalcenter.com)
The net result is a more sluggish metabolism that stores, rather than burns, incoming excess calories. (content.time.com)