What Foods Increase Irritability or Anger?

Packaged, Processed Seeds

"While a great choice when consumed raw or roasted yourself, the processed versions are often coated in a preservative called potassium bromate, which blocks iodine from being absorbed by the thyroid," says Boyer. "When your thyroid can't function properly, you may not be able to either. Psychiatrists often check their patients' thyroid levels when dealing with depression. They're also often loaded with sodium and questionable food additives."