Nutrition during IVF treatment is important for both men and women, emphasizing balanced nutrition and adequate fluid intake. A protein-rich diet with limited carbohydrate intake may be recommended whenever possible. One of the most important recommendations is to quit smoking, as it has negative effects on both egg and sperm quality. Additionally, certain vitamin supplements may be prescribed during the treatment process. If there are weight-related concerns, consulting a dietitian before or during the IVF treatment process can be beneficial.