President Donald Trump is apparently making a strong case for the McDiet … ’cause he’s out here claiming junk food might actually be the secret sauce to looking good!

Speaking from the White House, Trump — who’s famously been loyal to McDonald’s for decades — bragged he feels exactly the same as he did 50 years ago … joking that maybe greasy burgers and fries are actually the way forward, not all that rabbit food stuff.

Still hungry to make his point … Trump McDoubled down by saying he knows plenty of super healthy people who hit fancy restaurants and munch on celery sticks all day … while he’s over here ordering steak — and “everything else” — and somehow still feeling fantastic.

According to Trump, those health-obsessed folks still “kick the bucket” anyway … meanwhile he’s standing there claiming he feels better than ever.

Of course, despite claiming he eats whatever he wants, Trump still clearly cares about appearances too … recently admitting he’d rather skip wearing a bulletproof vest because he didn’t want to look 20lbs heavier.