White-colored beans, however, contain few if any tannins. In migraine-trigger lists, legumes are often listed, but the various types of legumes are not distinguished. Migraineurs who have shunned all beans in the past may be able to eat Cannellinis and Great Northern Beans with no problem. Cigarette smoke People have often complained that their own or second-hand smoke causes them to have migraine. Tobacco leaves have been measured to contain 30,000- 70.000 ppm tannins.
Tannins are in the smoke when a cigarette is burned.
Because smoke from cigarettes does not get into the digestive system, this may indicate that tannin's migrainous effects are not solely from the anti-nutritional binding of nutritional elements in the gut. If the anti-nutritional aspects of tannin binding is the only direct effect, could these effects be eliminated with increased starch consumption and with supplementation of the diet with certain amino acids, enzymes, thiamine, etc. They are also fed processed foods that are possibly compounded with tannin-containing additives.