From the Super Mario Wiki
Yoshi-Ade is an item found in Super Mario RPG: Legend of the Seven Stars. If Mario uses a Yoshi Cookie in battle, and Yoshi fails to swallow the enemy, the dinosaur will give Mario another Yoshi Cookie or a Yoshi Candy. Rarely, though, Yoshi gives Mario a Yoshi-Ade. Yoshi-Ade functions like an Energizer and Bracer in one, boosting the attack and defense of one ally. A well-timed Geno Boost has a very similar effect.
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