I think weekly refeeds are a disaster if you are trying to lose weight.
1. I do not believe loss of carbs hinders performance in the gym. I have been super-strict keto for 3 months. My average ketones during that time is 1.6. I also do intermittent fasting. I'm on my way to the gym now to do heavy strength training and will be working out after a 25-hour fast (typically I workout with only 18-19 hours of fasting, but my schedule was different today.). I am having the best workouts of my life and am having quick recovery because my body has become very efficent at mobilizing fat.
2. An important key is that workouts need to be whole body workouts. Your lymphatic system mobilizes fat. Since the heart does not pump the lymphatic system, the only way that fluid gets moving is exercise. So don't make the mistake of doing only an upper body workout. You need a whole body workout every time. My favorite workout now is the one designed by Dr. McGuff. Basically, you lift the heaviest weight in which you can do only 4-6 reps going 5-7 seconds in each direction (e.g. lifting weight slowly in 1 directin for 5-7 seconds and then lowering weight in 5-7 seconds). If doing something like bicep curls, for example, you never let arm fully extend, but keep muscle under tension throughout the process. By increasing time under tension, you get dramatic results. You will quickly deplete glycogen reserves, but if you are keto-adpated, you can recover quickly.
3. If you do a carb refeed, it CAN kick you out of ketosis. I measure ketones regularly. If I eat carbs, my ketones may drop down to the 0.5-0.8 range the next day. But I quickly recover to 1.0-1.6 within a day of ketogenic diet. Many people return much more slowly. If you did a 1-day refeed, it could mean that you spend 3 days out of ketosis each week with only 4 days in. So that restricts your fat loss / cutting.
4. A better plan is to first make sure you are thoroughly keto-adapted and are practicing intermittent fasting. Get your body used to doing fasted workouts so that it becomes more efficient at fat burning. Then, after you have done strict keto for at least 6 weeks, you can can do refeeds. But instead of doing them weekly, only do them when you experience some body signals telling you need them. These symptoms would include: (1) extreme fatigue; (2) inability to recover quickly from workouts; (3) joint aches / pains that are not norml or are above what you normally experience in the 48 hours after a heavy workout; (4) feelings of lethargy accompanied by mood swings. I recommend you watch YouTube video by Thomas DeLauer about refeed to hear him describe his experience. (His explanations of everything are pretty technical but probably the most science-based approach you will find on anything.)
In the last 90 days, I've been hungry about 3 times and have extremely good recovery times even after heavy strength training sessions. In the 1 or 2 times that I had "signals" telling me it was time to refeed, I chose healthy carbs and usually only had 1 refeed meal (rather than a day or weekend of it). I would typicaly lose 1-2 lbs. over the next couple of days following the refeed.
Bookmarks