Cheek Pouch

I've been thinking about this ability for a while.

I wonder if a Pokemon with that ability will have its health restored all the way to full after eating a berry that will heal it, and having the ability activate after doing so.

So let's say; Sitrus Berry + Cheek Pouch activating= possibly a full HP

Like I get that it's fat and ugly but like??? It's quite good if given the best moveset + I mean Cheek Pouch, Stockpile and Swallow practically makes the thing invincible. And Gyro Ball for (probably) MASSIVE damage