I've lost 12 fat pounds and my workouts are just fine. I lost a small bit of energy for about a month but it wasn't anything that sidelined me or anything. I don't have enough time to really push for gains but I'm maintaining just fine. If I can run a mile in less than 7 mins and deadlift twice my body weight, I'm not in a bad way. I don't know how many calories I eat in a day and don't give a shit. I do know I'm not addicted to carbs anymore and I just eat some high quality veggies fur nutrients. I still do dairy and that's one I wonder about. Hard to jack the fat way up with no dairy. Some of my old man issues have greatly improved since I went keto. The research associated with keto diets to prevent/cure things like dementia's and cancers fascinates me. Needing carbs for energy is a lie. We didn't evolve on amber waves of grain.