User blog comment:Imhungry4444/What is up with Blackbeards body?/@comment-2106167-20110427101122

Well, my theory is somehow similar to the imprecise Cerberus one: you must have noticed, many D. owners seem to have a great appetite and are capable of storing ridiculous amounts of food inside their body... So what if they had more than one stomach? If Devil Fruits' powers resided in one's stomach, then having more than one would likely grant the ability to use more Devil Fruits at the same time... That's just a theory, but it looks fairly convincing to me =)