Not deliberate loss of weight is a symptom of some illnesses that it is necessary to diagnose to prevent from progressing and from being able to talk each other. Then if there is no diet excess of exercise or voluntariedad egg white must do to itself a general study of the possible causes.
It is clear that it will be different depending on the causes, once discarded the most frequent hipertiroidismo anorexia, depression, it is necessary to go on to the deepest study and to put the treatment of the base illness.