You really don't know how food is produced, do you? Try reading up a bit on the subject to see just how much energy is required to get a calorie of food energy to your mouth (quick hint: the most commonly used forms of plant-ready nitrogen fertilizer are almost completely derived from oil.)
Ok, I should've included more caveats. I meant that the calories you're consuming are solar power, though there's definitely other energy involved. The comparison is still invalid.
