Feverfew Leaf is nature’s remedy for the migraine headache because it acts as a vasodilator – it expands the arteries and veins. It is most useful as a preventative and taking one (1) capsule daily helps many people prevent the onset of a migraine headache. Once a migraine has started, Feverfew may reduce the severity of the headache. Feverfew has other benefits, too. It functions as a digestive aid and relieves menstrual cramps. Note: Many migraines are triggered by food sensitivities to dairy, wheat or peanuts. If you have frequent migraines, keep a daily journal listing the foods you’ve eaten. You may discover that what you are eating is triggering a migraine.