Multi-Size Technique

This is the trademark ability passed down through the Akimichi clan. When performed, the Akimichi grows in size, proportionately increasing their weight and strength and thus making their physical attacks more powerful. Such a significant change in size places a great burden on the user's body. During the Fourth Shinobi World War, Chōza and Chōji Akimichi at one point seem to use the Multi-Size Technique for several hours.

There are two ways the Multi-Size has been depicted in the series. The first is where the user becomes extremely round, with most of the body's expansion being applied to their torso; because this is what happens to Chōchō Akimichi when she uses it, she dislikes performing it. The second is where the user simply becomes larger, bigger than their normal size but not so big as when they use the Super Multi-Size Technique. In the manga, Chōji uses the first during Part I and the second during Part II and onwards, suggesting the user's age or experience has something to do with it. Episodes of the anime set during Part II occasionally show Chōji using the first version, instead suggesting the two versions are interchangeable.