What is the ruling on using diets and slimming patches for those who have a troublesome excess in weight, and what intention should be made to gain reward?

A Muslim should prepare their body to fulfill religious and worldly duties, and this includes acquiring physical strength. Excess weight is an obstacle to performing duties and a cause of laziness, incapacity, and illness. The Hadith criticizes the "Jawwāẓ," which refers to someone with a lot of flesh. Therefore, whoever has excess weight must strive to reduce it through dieting or other means. The intention that must be present varies: if obesity is harmful, then losing weight is obligatory; if it has not reached that extent, then it is recommended.