15 Breakfast Foods You Should Avoid Every Morning 12. Donuts Donuts are deep-fried, sugar-coated, and nutrient-poor. They cause a rapid rise in blood sugar followed by a crash, leaving you sluggish and hungry. Save them for special occasions rather than making them a breakfast staple. Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15