As a chocaholic, he needs to eat a piece of chocolate every day to feel satisfied.

chocaholic 是由 chocolate（巧克力）和 -aholic（成瘾者）组成的复合词。-aholic 来自 alcoholic（酗酒者），后来演变为表示"对某事物上瘾的人"的后缀。 chocaholic 指"对巧克力上瘾的人"，即"巧克力控"或"巧克力爱好者"。