Can eating Certain Foods Depress One?

I think so. Sometimes I will come away from a meal depressed. Not just the "I've eaten too much and I can't get up" feeling. But a sense of despair crawls up from somewhere and permeates my entire being. Mostly this occurs with fast food, which, sadly, I still do enjoy most of the time. I know that when I don't eat I get grumpy. Sometimes downright mean. That is an empirical observation over many years. This depression thing is something else again. And it isn't fun. But blogging about it helped. :)