Myasthenia gravis is an autoimmune disease of the nervous system, primarily due to dysfunction at the neuromuscular junction, leading to skeletal muscle fatigue. Symptoms include drooping eyelids, double vision, overall weakness, and even swallowing difficulties. Foods that should be avoided in myasthenia gravis mainly include certain medications, such as aminoglycoside antibiotics, which should not be taken orally by patients, as well as fluoroquinolone antibiotics. These antibiotics can exacerbate neuromuscular transmission disorders, potentially worsening the disease. Additionally, benzodiazepines, barbiturates, and some anti-arrhythmic drugs can also reduce muscle membrane excitability and should be avoided.