TMZ.com
Dr. Oz is firing back at Mark Wahlberg‘s cardiac arrest crack — and as it turns out, the doc’s actually got some jokes of his own … plus nifty visual aides.
DO took to Instagram Saturday to respond to Mark’s own video from a few days ago, where he accepted Oz’s no-breakfast/one-legged push-up challenge and then joked the guy would probably need a defibrillator by the time Marky Mark was done with him in the gym.
Waiting for your permission to load the Instagram Media.
Well, Dr. Oz seems to have one-upped him — rocking real scrubs and showing off an actual defibrillator in what looks to be a real hospital … not to mention giving a demonstration.
Oz even takes some shots at MW, saying he’s probably used a fake defibrillator in front of the camera — but in the real world, only one of ’em knows how to use it … and it ain’t Mark. He goes on to call out Mark’s “full stomach” and show muscles … doubting they work as advertised. It’s funny, Dr. Oz is confident Mark will be the one passing out.
This is just the latest sling in what’s become the weirdest/most awesome celeb feud of the new year. That said, we’re ready to see some action here … ’cause talk is cheap.
Literally, slide through the office so we can officiate this thing. We kinda started it, after all 
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