Migraines left untreated for a long time are prone to headaches and nausea, and even poor diet, and also tend to affect your health. Touch less alcoholic beverages Many ordinary people have experienced the feeling of dizziness after drinking alcohol. Alcohol can also trigger migraines because it has the effect of dilating blood vessels and stimulating prostaglandin synthesis, while beer, white wine and fruit wine are also rich in tyrosine, which can aggravate migraine attacks. Beware of animal offal Animal offal, especially animal liver, is rich in vitamin A, an essential nutrient that protects the eyesight and strengthens resistance. However, any food should be consumed in moderation, and studies have proven that excessive intake of vitamin A may cause migraine attacks in a process similar to the action of tyrosine in the body. This is one of the dietary contraindications for migraines. Stay away from ice cream Certain patients have vasoregulatory dysfunction and overreact to cold stimuli, leading to vasospasm. One study showed that about 90 percent of migraine sufferers experience transient headaches after consuming ice cream or quickly drinking a cold beverage. More sensitive patients who place crushed ice cubes directly on the palate or back of the throat can induce pain in specific areas. The caffeine contained in coffee or strong tea can be a “pick-me-up” and may trigger migraines. High intake of caffeine not only leads to excessive vasoconstriction, but also stimulates the nervous system and affects sleep. Be wary of cheese and chocolate Cheese and chocolate are rich in tyrosine, which is the most common food that causes migraines. Some migraine sufferers have a reduced ability to break down tyrosine, which increases tyrosine in the body and promotes prostaglandin synthesis, which acts directly on the blood vessels in the head, causing strong vasodilation and resulting in headache attacks.