possible, but uncomfortable -- nailed it. life is not supposed to be 100% comfortable. traditional spiritual practices bake in periods of discomfort for a reason.
And for me to stay skinny, I never have to think about my food intake. I don't diet, I simply never get that hungry. I'm not saying this as some sort of weird internet brag, it's the opposite in fact. I fully recognize that my genetics (and also possibly my childhood upbringing) basically have full control over my weight level and hunger level. This idea that we all should be some sort of Zen ascetics to maintain our weight is horse shit.