Objective: The aim of this study was to clarify the effect of food on male fertility in a sample of Egyptian men. Background: Eating a varied and healthful diet may be an essential aspect of sustaining good overall health. However, specific vitamins and food groups may have a more substantial impact on reproductive health than others. A male's diet may affect his fertility. Method: Type of study Case control nested in a cross-sectional study It was conducted during the period from September 1st, 2021, to 1st of September 1st, 2022, in Dermatology and Andrology Outpatient Clinic in Menoufia University. Results: The results Twenty hundred and fifty-seven married men who have a regular sexual relation, eating different types of food accepting to participate in this study, the highest percentage of the participants were from urban areas, aged 30-39 years, weighed more than 90 kg, were 170-180 cm tall and had secondary education. Conclusion: Nutrition can both negatively and positively affect the quality of semen. The diet should include vegetables and fruit, fish and seafood, nuts, seeds, whole-grain and fibre-rich products, poultry, and low-fat dairy products.