I have been eating somewhat healthier in the last couple years and I still eat kind of crappy - but just cutting out processed breads/crackers/meats and only select soups / sauces and I have realised crazy improvement without any other influences.

I can confirm that you don't need to work out to lose weight and gain muscle....it's definitely food. I was so bloated and swollen and didn't notice until it was gone. About an inch or two around.