So this is not quick and I'd better give a background rundown, before I pose my questions. I'm 36, male, living with T1 for 11 years now. 6 years ago I read 'The Primal Blueprint', by Mark Sisson and took a turn away from anti-depressants, a work burnout and insidious weight gain. I've tried to stick to a paleo diet and have succeeded sometimes for months at a time, but never truly long-lasting. I measured my success by average blood glucose and amount of carbs/day. My HbA1C is around 6.5-7.5%.
Fast-forward early this year - I read Dr. Bernstein's book and reinforced my health habits of a LCHF diet. I am currently practicing an intensive sports regiment: biking to work, total of 25 km a day, swimming once a week and then going to gym, bodybuilding and strength training 7 times a week. My body is really strong and sculpted.
Or wait, it's actually not. Indeed my arms, shoulders, chest, legs, even butt are sculpted, but the trunk... The trunk is a fat mess, looking more like a sedentary weakly 45-year office worker, than a guy who can dead-lift 180 kg (400 pounds).
Body fat percentage says 24% (although I am not concerned with that number) and I can feel a six pack under the round mess I got for a mid-section.
I believe now that my T1 is also partially a T2, that insulin is making me fatter and that I am becoming insulin resistant. Last week I bought 'The complete guide to fasting', by Jason Fung and Jimmy Moore, and you won't believe how excited I got (well, you would believe, if I told you I read the book in a day). I've been intermittently fasting now for a second day, having bulletproof coffee in the morning and then one meal in the late evening. It's not easy, but my insulin requirements are basically only basal, and even those have been only 2/3 from normal. I think this is all great! I don't know whether I can keep it, but I love it.
I do, however, have concerns of the safety of an IF protocol for type 1 people. For example yesterday I got a low during the day that lasted 3 hours -- I noticed it at 3.3 (60 mg/dl) and immediately suspended my pump. During the next hours it reaaaly slowly rebounded to 5.5 (100) after having first dropped even lower. During this time, without eating, I could basically focus only on reading, i.e. I couldn't drive (to shop as planned) or engage in a conversation. This concerns me as I am biking 13 km trips and here's the deal with IF -- the body supposedly first depletes the liver of glycogen stores, before it can get into a ketogenic state and start burning fat for fuel. What I am afraid of, is that the liver may not have enough sugar to counter a low, and thus in a biking session, get into a too-dangerous low (I've seen a fare share of biking-induced lows, especially when having a big meal for lunch and insulin finally kicking in 5 hours later on the way back home).
Another concern is, if I'd really get to keep my muscle. In the fasting book it's mentioned, that thanks mostly to Human Growth Hormone, muscle mass is almost entirely preserved during extended fasts, but perhaps it probably is assuming overweight/not muscular body types and perhaps not the types that are actively building muscle mass. Also, so far I've tried intermittent fasting, not full-blown ones, and there's no mention of IF/muscle mass relation.
What are your experiences with IF or longer fasts? Do you have any advice that I can apply to my regimen? I appreciate any advice Thanks!