I have only recently started 5:2 but am already seeing great effects on hunger, weight and much more. I do have one concern/question though. In my 2nd fast, I was on my period, and it just stopped dead - I thought I'd perhaps just had a short period, but the next day when I had a normal meal, it started again, just as heavily. It was as if it was just 'paused' on the 500 calories fast day. On that day, I ate steamed chicken and spinach/cucumber for lunch, and steamed chicken and steamed green veg for dinner to total 500 calories. I drank a stack more water and black tea. Everything else was as normal - sleep, stress etc. This has never happened to me before, but I've done some reading that fasting can impact hormones, so I'm wondering if this is a 'bad thing', ie perhaps this type of fasting isn't for me? I have been doing 16:8 for a couple of years and had no impact on periods.
I'd love your help/opinions.