I'm back on keto as of today. I find my energy in the gym is lacking from what it once was, and possibly carbs is not for me- or rather the carbs I was choosing to eat. My diet went to shit in the past few months, so I'm going to return to keto to cut some weight. I've put on about 20 pounds,well intentionally, but at least a dozen of which has been lean muscle. Still though I'm feeling like I can't rep to failure as well now, I can't get those decisive extra 2 or even 3 reps when you feel your body should've shut down, but you pull a little bit extra out of the tank. That's not happening, I'm getting towards failure, and then there's nothing left, I go to press and just stop. I took somewhat of a break last week, I only went to the gym Monday and Friday. A lot of people agree that every 10-12 weeks it's good to have a bit of time off, and on Friday my energy felt great. Today.. not so much. So it's back to clean eating and low carbs for me. I'm going to get strict about my Intermittent Fasting again, maximum 4 hour eating window, maybe 2. @David_MPN someone told me recently that the best IF for hypertrophy and mass gain is a 12 hour eating window? Being used to 2 hours, I'd find that very easy, but my friend couldn't find the source. It was probably Kevin Rose, or Dr Ronda Patrick discussing Kevin Rose (she's on Joe Rogan often) but this 12 hours is apparently the best window to get HGH and build up of testosterone, I was just of the broscience assumption that the larger the window, the more HGH and testosterone. Any thoughts on this or sources that study the best window for mass gain?