Malteserr wrote:
Redhead, do you do one 36 hour no food fast day a week and the other 500 calorie fast day or both no food fasts? Tomorrow is my next fast day and I am thinking to do another 36 hr no food fast so it will be my second for the week. Is it ok or will it be too much? I feel great today after doing no food fast Monday so it will be great to have the same feeling Thursday as well.
Wildmisses is right, I do two 36 hour fasts each week. I plan to keep it up until I get to my target weight and then do just one per week. However, sustainability is the key. If you can do two water fasts a week easily and feel good, do it. If you prefer one water fast and one 500 cal fast, do that and don't stress about it.
I advocate water fasting, but I don't want to give the impression I think less of normal 5:2. I think it's brilliant too and the results on this forum prove that.
Here's my thinking: If we assume that we'd have eaten 2500 cals on average per day before starting 5:2, reducing by 5000 per week (two water fasts) should mean we drop about 1.5lb per week (that's been my average loss). Doing two 500cal fasts = reducing by 4000 cals so you'd drop about 1lb a week on average. I realise this should be adjusted to use maintenance tdee instead of an arbitrary 2500 cals, but even though 2500 is 500+ cals over my tdee I wasn't actually steadily gaining a pound a week over the last 10 years - more like 3 stone (4.2 lb per year) in 10 years so I'm not totally convinced about tdee anyway.
Therefore, unless you're in a rush to lose weight, losing a pound a week is fine and so if doing 500cals is sustainable, I'd say stick with it. Getting used to doing the fasts so they're sustainable is the key thing.
I do think trying the 36 hour fast once or twice is a good idea to prove you can do it. Listen to your body carefully and if you find it doable, stick with it.
Sorry for the long reply!!