The author of "The Prisoner of Food" and the author of One Piece are not the same person

The author of "One Piece" is Eiichiro Oda

The author of "The Prisoner of Food" is Mitsunen Shimabukuro

But "One Piece" and "Prisoners of Food" are both published and distributed by the same company, Shueisha

Shueisha is a comprehensive publishing house in Japan. The name of the company means "Collection of Wisdom".