I imagine his info is from the following
According to the ancient Greeks, the ideal male physique should have these measurements: the arms should be 2.5 times the circumference of the wrist, the calves 1.9 times the ankle size, the thighs 1.75 times the knee, the shoulders 1.6 times the waist...
I tried keto last year which while is good for weight loss I found it's not so good for muscle retention, energy or regular bowel movement but that could be just me
Unfortunately it's all trial and error, do you know what caloric intake is maintenance level? At 88kgs (194lbs) I would estimate your maintenance calories at ~2900 (body weight x 15) or even as much as 3100 (x16) if training 6x per week (depending on your intensity) so I would start somewhere...
Just eat a carb heavy meal an hour or so before training with a small amount of protein, BCAAs will be a waste of money IMO. Before my evening workout I eat 50-70g of oats with 100g of Greek Yoghurt mixed in
How many days per week do you low carb and medium carb etc
IMO your caloric intake on low carb days is too low (body weight x ~9.3) or at least it would be for me
AM sessions are fasted as don't want to get up and eat at 4:30 and PM sessions I eat oatmeal (between 50 and 70g depending on intensity of upcoming workout) about 1.5 hours before training
Didn't say he wasn't in a state of ketosis or producing ketones, but there is a difference between that term and being 'fat adapted' but as I am clueless I won't comment any further on this matter