Cutting Weight Done Right
Body weight manipulation or “cutting weight” for a fight or tournament is common practice in sports like boxing, BJJ, and wrestling. It usually requires a rapid drop in body weight before the athlete weighs in which is then followed by a rapid gain in weight before the competition. This is why you sometimes see two fighters competing in the same weight class but one fighter looks way bigger and heavier than the other.
For many athletes this is where there is a big weakness in their preparation for a competition or fight. Too often they leave themselves with far too much weight to cut in a short period of time, and don’t re-hydrate and eat properly after weigh-in, leaving them depleted and actually decreasing their performance. Cutting weight safely and effectively takes knowledge, skill, and practice.
See full article here