I used to eat my breakfast at work, but I got tired of carrying extra food with me. My lunch box isn't very big and really only holds enough for my lunch. So I started eating at home before I ride. It took some getting used to. Having food in my stomach made me feel short of breath and made me feel like I was working harder. After a few weeks I got used to it. Now I don't think twice about it. Shove some grub down my gullet and off I go.