Subarachnoid hemorrhage is most commonly caused by an aneurysm. Once an aneurysm ruptures, it can lead to blood leaking into the subarachnoid space, causing severe headaches, nausea, vomiting, and other clinical symptoms. The onset is very sudden and the headaches can be extremely intense. It is crucial to treat aggressively and clamp the aneurysm as soon as possible. The diet for patients with subarachnoid hemorrhage should include: First, it is essential to take anti-vasospasm medications, as subarachnoid hemorrhage can easily lead to arterial spasms. Calcium channel blockers should be used to prevent arterial spasms to avoid severe complications. Second, consume foods that aid in bowel movements, such as bananas, apples, and oranges. It is vital for patients with subarachnoid hemorrhage to maintain regular bowel movements, and these foods can help. Third, eat high-quality proteins to strengthen the body and prevent complications. This can include fish, lean meats, beef, and drinking milk.