Because women are passionate about fitness and a beautiful figure, they always strive to lose weight, rushing to follow a diet to regain their lost weight. They may also rush to follow a diet to return to their ideal weight. They may choose a diet that is unsuitable for them or that causes health problems and harms their health. Many doctors and nutritionists have warned of the negative consequences of following an inappropriate weight-loss regimen, which can be dangerous, including anemia and sometimes death. Therefore, there is important information to consider before embarking on any diet. A comprehensive medical examination and laboratory tests are required to determine the true health status of the person embarking on the diet. A specialist physician must be consulted to determine the appropriate diet, which does not permit the addition, deletion, or substitution of any of the prescribed nutrients.