alt Hacker News“Ketones, whether produced endogenously through fasting or low-carbohydrate/high-fat diets or administered exogenously as a supplement, have been shown to improve age-related cognitive decline (23–25) and to restore insulin-resistance-induced deficits in axonal conduction velocity” - Another win for the gym bros
As someone who has been weight lifting for the past few years and previously was really into keto diets, one thing I've realised is that carbs are simply necessary in order to have the energy to push very heavy weights. Fat just doesn't give you the required energy to do so.
With that said, if you're only pushing moderately heavy weights or if you're a beginner and you're starting out with low weights, then it usually can be done.
Though the compromise is usually to eat high carb/low fat on workout days, and low carb/high fat on rest days. Fasting as well helps a ton.