Athletes’ foot is a condition caused by vitamin B1 deficiency, and the main reason for this deficiency is an irregular lifestyle and diet high in carbohydrates with insufficient protein intake from meat and legumes, leading to nutritional deficiencies. The body’s immunity weakens as a result, and athletes’ foot, also known as tinea pedis, can occur. This condition is caused by pathogenic fungi, and its occurrence is related to lifestyle habits. To prevent athletes’ foot, it is advisable to wear breathable, loose, and ventilated shoes, keep the feet clean and dry, consume more coarse grains, and eat more fresh vegetables and fruits. Treatment options include taking oral vitamin B1 supplements and applying topical antifungal creams such as Daktinomycin ointment.