Mike Tyson Cuts the Fat ... After Cutting Out Meat
Mike Tyson is half the man he used to be -- and he proved it during a dinner date with his wife in Beverly Hills last night ... showing off his slimmed down physique for the first time since announcing he's turned vegan.

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In case you missed it, Mike -- who once famously chewed up Evander Holyfield's flesh back in the day -- claims he's given up meat for good.

So long Iron Mike ... hello, Iron Deficient Mike!