All I know, people who live Keto life style, look like they aged 10-20 years. No wonder, it also depletes all your water under your skin. Another reason I'm against no carb is:
"A bodybuilders myoctyes (muscle cells) have a massive bias to being predominately fast twitch fibres compared to the slow twitch fibre of say a marathon runner or maybe cross country skier. Fast twitch fibres can generate more force but slow twitch fibres are better at utilising oxygen and fats because of a higher mitochondrial density. While fast twitch fibres need to carry out quick processes this requires immediate energy in the form of glucose, ATP, and creatinephosphate.
Someone on a low carb diet could never hope to train as hard as someone consuming a high carb diet, physiologically it doen’t make sense. The conversion of proteins and fats to products that can be readily utilised as a energy source is simply not as quick as glycolysis or glucose. While if you consider a low carb dieter may consume the vast majority of carb prior to training and after to compensate for this sadly the figures just don’t add up. Muscle glycogen stores between 200 – 400g the liver between 40 – 90g A high carb meal around 40- 80g wouldn’t even make a dent in those numbers and would never guarantee the muscle of choice would be topped up."
http://www.musclechat.co.uk/f105/high-protein-low-carb-diets-poor-fit-natural-bodybuilder-part-1-a-35813/From a UK natural champion, also PhD nutritionist.
I stick to my carbs, since I also enjoy other sports.