If you are like most people, your eating habits change noticeably when you are stressed. You likely either develop a sudden and overwhelming case of the munchies, find yourself hungry all the time or uninterested in food at all. None of these are good responses to stress.
Many people deal with stress by eating comfort foods. In theory, there is nothing wrong with finding relaxation in a hot meal. Frankly, a tasty meal is a good way to calm yourself down. The problem is that most comfort foods are extremely unhealthy, and many people choose items such as ice cream and chocolate as their comfort foods. People also tend to eat too much of those foods. Overeating and eating poorly are unhealthy options for obvious reasons, but they can also sap your mental and physical energy which leaves you even less equipped to deal with your stress.
Skipping meals is another common reaction to stress, and it is no healthier than chowing down on ice cream bars or macaroni and cheese every night. When you refuse to eat, your body lacks the resources it needs to keep functioning at peak capacity. As such, you end up tired, irritable, more vulnerable to further stress and often too mentally exhausted to find solutions for the cause of your stress.