When people hear that I am a vegetarian and do triathlon—let alone my other ventures such as mountain biking the Rocky Mountains from Canada to Mexico—they are surprised that I can do such things without being a carnivore. There is an interesting article in the NY Times about an ultramarathoner who is not only a vegetarian, but is a vegan. I tried that for about a year but it was just too difficult with all my travelling, especially to keep my protein intake up. In any event, it just shows that God knew what he was doing when he gave us our original diet: "Behold I have given you every herb bearing seed, which is upon the face of all the earth, and every tree, in the which is the fruit of a tree yielding seed; to you it shall be for meat." (Genesis 1:29).