Odd when I was looking up Info on "Recurring weapons and items from The Legend of Zelda series" at wikipedia and saw this

Deku Nuts

Deku Nuts are large seeds harvested from the Great Deku Tree and obtained from certain enemies when defeated. They explode with an overpowering flash, which can blind and stun some enemies. In Ocarina of Time, Sheik and Impa use them to blind Link, allowing them to disappear. They appear as items in Super Smash Bros. Brawl.
So yeah even thought it's not up on the Site yet it is very likely they may be items in Brawl...

~Charles Legend