Great stuff. I do the same and usually lose weight after. Humans are not built for consistency. I eat chips made from potatoes or sweet potatoes, and sometimes masses of pasta (wheat!) and usually a lot of wine and peas. And Haagen Daz vanilla icecream (no funny stuff, simple ingredients).
Have you read Nassim Taleb's essay, Why I Walk? It talks about this and how power laws are more relevant to humans diet and not just to human buildings.