I tried it many years ago when it was the Atkins diet. Lasted about 5 days before I woke up one day feeling so weak I couldn't even make a few steps into the kitchen. Gave up, ate an English muffin, and felt much better. I am convinced it messed up my metabolism re carbs for years after that.
My LDL is high so I am cutting way back on meat (I didn't eat much to begin with) and switched to milk instead of cream for my coffee. BTW, when I met DH he was putting sugar in his coffee. I told him, cut back a little each day, you will get used to doing without. He did and never had sugar in it again after a few weeks.