Bartdorman just about covered it, I want to “second” his experience.
I ran marathons at 185, never lost weight during the training etc (was doing the classic carb load program).
I started IF in Feb of 2016 to drop those last “few pounds” and dropped to 165 within a few months (around 10-12% body fat).
The IF turned into fasting, the fasting turned into keto (funny how the two keto dudes went from keto to fasting, I came in the “other way”)…
What I now believe is that diet is 99% of weight loss and management. I run 35-50 miles a week and it ONLY keeps about 7-8 pounds “off” (mostly beer weight).
Exercise requires calories to support. If you want to continue your exercise regimen AND lose weight, keto + IF is the way to go.
I didn’t stress working out fasted. I’d often work out first thing in the AM and not eat until 1800 or so, and stop eating by 2100, then get up and do it again the next day. I’ve also fasted for 5 days and ran 12 miles on the sixth day, it won’t kill you and you won’t lose every muscle in your body as the supplement manufacturers would have us believe.
If you are willing to back off the exercise (and I feel you if you are not, I’m addicted myself) then you will probably see faster results, counter-intuitive yes but, exercising like you are requires closer attention to diet and trying to find that sweet spot of enough to support but not too much that you store fat.
Another angle of attack is a 5-7 day fast, you’ll drop some water weight and, if you take your time maybe “working up” to that period (I started with 24, then went 48 etc…) you’ll be able to continue to exercise while fasting (just not as powerful/explosive/fast on your runs) and probably accelerate the loss (not that it would be a good thing…).
Good luck!
It’s funny you mention this. I’m in a “build muscle phase” (trying to win a pull up competition later this month) and I’ve been playing with the keto gains calc.
If I plug in that I’m at 10% BF, it reports that I need 147 grams of protein for today (shooting for 1 gram per…). I was curious so I bumped the BF number up just to see the result, if I go to 15% BF, the number becomes… 139, a whopping 8 gram diff. I don’t think the calc is “wrong” or “off” but this is (to me) an illustration of how having a range rather than a super specific target probably makes more sense.
For example, I shoot for 130 to 150 grams of pro a day and don’t sweat if I’m a few over or under. When doing an exercise I often shoot for a range as well, say 8-10 reps rather than “I must hit 10 reps or this workout is a failure”. I will admit, it’s taken some time to give myself that “slack”. I’ve been pretty rough on myself at times. Using ranges makes life simpler, I even do it with body weight, I don’t sweat it until I go over a number, anything below is fine by me.