Research deems that its fine to combine fasting and dieting and combining the two may indeed be beneficial, however make sure you are well hydrated. We get a lot of fluid from food, so if you cut your calories to a ¼ during your fasting day you will be consuming less water therefore we recommend drinking lots of calorie free fluid during the day, whether you are exercising or not. This can be black tea, black coffee (the idea that coffee makes you dehydrate is a myth), water from the tap, herbal teas, whatever.

Men seem to tolerate and respond better to exercise on fasting days. For women the picture is more complicated and we will try to find out more about this and provide an update.