The study aimed to identify the level of the weight difference between young weightlifters when a suddendrop occurred during the competition period, to identify the level of (RMRF) difference in the concentrationof salts (sodium - potassium) in their blood during this period, and to identify the effect, relationshipand contribution of sudden weight loss during this period. The period of competition in (RMR) and theconcentration of (sodium potassium-) salts in their blood, and they adopted the descriptive method ofrelational relations on weightlifting youth (18) - 20 years under the weight category 69 kg were chosenrandomly and (20) weight lifter, as That the number of those who lost weight unapproved is (12) weightliftersmake up the percentage (22.917%) from the origin of their community. Fitmate pro) at rest time after weightloss, at rest time after weight loss, and withdrawing (5 cc) of blood every before and after intentional weightloss to measure sodium and potassium cytokine by laboratory examination, and the researcher verified thatthe data were processed by the cyst system Statistical Abstract (SPSS) for conclusions and extrapolationsBikat that the process of sudden weight loss is associated with a negative relationship in the level of (RMR)and the concentration of salts (sodium - potassium) in the blood, and affects and contributes to reducing thelevels of young Al Rafi’i for weightlifting during the competition period, and it is necessary to nurture thecoaches to support the culture of the ideal weight and the true athlete of the youth of Al Rafei to lift Weights,as can be the coaches who influence them a lot. To prevent sudden weight loss disorder, they should reducethis phenomenon, which can easily cause eating disorders, as can those in charge of men’s tournaments.Agement at the local weightlifting association and its training, providing advice to the youth eye class on theunhealthy DONC weight loss, if there are no other professionals who can intervene (physiologists, doctors ...and others), it is necessary for the basic trainers to have the information. Correct information about the risksof eating disorders in sport and to be fully aware of the symptoms and consequences, to be able to act andbuild a level of preventive discoveries for the relevant predictions and to take the necessary steps when theseproblems arise, and whoever learns adequately about nutrition supervises the diet and gives Lempid tips toreduce Weight healthily for the prevention and treatment of eating disorders and counseling (for example,when an athlete needs to lose a kilo or more of body weight).