My Jeep is running through a lot of antifreeze

It is a head gasket - Its going into the combustion chamber and out the tail pipe

Start the engine, leave it running, and hold a paper towel/ cloth behind the exhaust for a minute. This will tell you if you are burning any oil or anti-freeze. If you're anti-freeze, the exhaust will have a slightly sweet smell. Good luck, hope it's not the head gasket!

If you smell it inside the jeep its the heater core

I was told by a mechanic that it is probably the intake gasket but not sure how to tell if that is true or not