Let me just counter that with my experience. I can focus better and I get things done much better when eat regulary and when I eat well (no fast food, not too m

Let me just counter that with my experience. I can focus better and I get things done much better when eat regulary and when I eat well (no fast food, not too much fat etc). If I eat to late or if I only eat a sandwich for breakfast the whole day can become ruined and if I completely skip a meal I'll be worse off for a day or two. But that's just me.