Complete guide to fasting

It helps but start at your comfort level. If you are already comfortably doing 18:6, try 23:1 next. You will know you are ready when you have little or no hunger pangs at your usual meal times. Do remember to hydrate with salt throughout the fast Black coffee or plain tea is also okay. This is a good resource: https://catalogue.nlb.gov.sg/search/card?recordId=202677222