Diurectics make the body rid itself of fluid. So you will see weight loss but it is not real, there is not fat lost.
A dietician/nutritionalist, if that's one of your options :)
Monogenetic disorders are caused by a mutation in a single gene. The mutation may be present on one or both chromosomes (one chromosome inherited from each parent). Examples of monogenic disorders are: sickle cell disease, cystic fibrosis, polycystic kidney disease, and Tay-Sachs disease.