Myasthenia gravis is an autoimmune disease of the nervous system that primarily affects the neuromuscular junction, leading to muscle weakness and post-exertional fatigue. Some patients may also experience clinical symptoms such as ptosis and diplopia. The main treatments include corticosteroids and immunosuppressants. Patients with myasthenia gravis should pay attention to their diet: First, consume plenty of fresh vegetables and fruits, which are rich in vitamins that can provide sufficient immunity to prevent certain complications. Second, eat foods high in B vitamins, such as animal liver, lean meat, and whole grains, which are beneficial for patients. Third, patients should also consume high-quality proteins, which provide ample nutrition and increase resistance, including items such as milk, beef, and fish.