User blog comment:IamJakuhoRaikoben/Chapter 245: The Unbranded Man, Review./@comment-3987368-20110730184547/@comment-3987368-20110730191815

I understand he can only eat fire. What I'm saying is that the lightning never physically entered his mouth. 'Thanks for the meal' has nearly become something of a catchphrase of Natsu's given the number of times he's eaten fire since he's said similar things after eating Bora's fire and (if I remember correctly) Totomaru's.