Background: Nutrition is crucial factor in maintaining burn Healing of burn wounds Excessive energy demands during the burn wound healing process should be met with proper nutrition. Nutritional deficits obstruct the natural processes that allow wound healing to go through particular stages. Aim: To assess the effect of nutritional factor on burn wound healing. Research question: Does the nutritional factor affect on burn wound healing? Methods: A convenience sample of thirty adult patients who admitted to the burn unit at Assiut and El Elman General Hospitals. Tools: (Ⅰ) Patient assessment sheet. (Ⅱ) The Bates-Jensen Wound Assessment Tool (BWAT). Results: A negative relationship was found between burn wound severity and clinical nutritional parameters as good nutrition, hemoglobin, fluid, calories and protein intake (-0.664,-0.579,-0.621, -0.752, -0.777 respectively). Conclusions: A deterioration in burn wound condition from minimal to moderate and extreme severity was observed among studied patients with reduction of nutritional parameters. Recommendation: Nutritional elements must be provided for burned patients during all phases of burn wound healing process.