As a general rule of thumb, it is best to start your fast after dinner and wait 16 hours before your next meal. An example of this could look like: Start your fast at 8 p.m., then take Unimate when you wake up the next morning to extend that fast until lunch. 10–15 minutes before your lunch at 12 p.m., take Balance. Your dinner time may vary, but try to time it so you have a 16-hour fast between dinner and lunch the next day.