But the surge of energy caused by the combo of white flours and white sugars is followed by a major crash, as well as mood swings. Avoid the office birthday party if you have to eat the cake. One of my all-time favorite guilty pleasures is on this âbadâ list as well â the hot dog. Or any manufactured processed meat like bologna for that matter. They are chock full of nitrates, a preservative used to keep food fresh. Nitrates can cause both tension and migraine headaches, so stay away from these meats.