User blog comment:Luffayking12/big mam chocolate chocolate no mi/@comment-3337232-20120910033209/@comment-3337232-20120910230157

All the canon devil fruits (in the manga) are natural elements. All the non-canon ones (in the movies and videogames) aren't natural elements. And since they're non canon, that means they wouldn't exist in the manga. So all logias are natural elements or natural forces. period. And the Gasu Gasu no Mi controls natural gases, we don't know specifically which ones, but if Caesar can drain all the Oxygen out of the air, then he's a natural element