I tried it once, years ago. Lost weight fast, but had no energy. It wasn’t worth it.
When you first start a low carb diet your body loses excessive amounts of potassium. That rendered me almost unable to work. The problem clears itself up after about a month. I corrected it by taking potassium pills. I didn’t follow any particular diet, just eliminated carbs. I used a carb counter and avoided all foods that had more than a couple of carbs. The weight lose was rapid and the results gave me incentive to stick with it. I lost thirty pounds in 10 weeks. Since achieving my goal weight I avoid carbs at breakfast and lunch but eat a pretty normal supper. In all phases of the diet my appetite was, and is, much smaller. Even now the portions I eat are much smaller than before. On top of every thing else my cholesterol went from 210 to 160. It works for me and I highly recommend it.