Keto diet and migraine: what to know

Migraine is a neurological condition that can cause head pain with nausea, vomiting, light sensitivity, dizziness, or visual symptoms. A sudden eating-pattern change may disturb regular meals, fluid intake, sleep, or caffeine exposure. Those shifts can make an attack more likely for someone who is already prone to migraine, while the diet itself is not a guaranteed treatment.

Symptoms can overlap with other problems. [Dizziness](/symptoms/dizziness/), [Nausea](/symptoms/nausea/), and [Light Sensitivity](/symptoms/light-sensitivity/) may occur during migraine, but new or unusual symptoms deserve a wider assessment. Record foods, drinks, sleep, stress, hormonal changes, and attack timing to identify your own pattern.

Keep meals and fluids regular, change caffeine gradually if possible, and avoid exercising hard while under-fuelled. At the first sign of an attack, use your prescribed migraine plan and rest in a quiet, dark room. Do not begin, stop, or alter preventive medicines solely because you are changing your diet.

A clinician can help you choose a less restrictive approach if the diet causes repeated attacks, constipation, weakness, or difficulty maintaining nourishment. A headache diary should include the food change, timing, symptoms, medicines taken, and response. Persistent vomiting can cause dehydration and needs attention.

Call emergency services for a sudden explosive headache, one-sided weakness, facial drooping, trouble speaking, seizure, confusion, fainting, or a new severe headache with fever or stiff neck. Seek prompt review for a first migraine-like episode, a major change in your usual pattern, repeated vomiting, or symptoms that continue despite your usual treatment.

Ask whether your symptoms meet migraine criteria, which triggers to track, how to adjust caffeine and meals, and whether your current acute or preventive medicines remain appropriate. Discuss nutrition support if the diet is difficult to sustain.