Be intentional about your sipping and aim to drink at least 2.7 liters of water per day. The only time as much plain water as you want is not allowed is if you’re on a dry fast, which Reisdorf does not recommend and says can lead to severe dehydration.

CLEVELAND (WJW) – Intermittent fasting is one of the fastest growing diet trends around the world and in the United States. That’s where people only eat during limited windows of time each day and then abstain from food or fast the rest of the day.

There is evidence of potential harm from intermittent fasting. Studies have shown an increased risk of eating disorders (particularly binge eating). One study showed that disordered eating worsened in those assigned to an intermittent fasting schedule. However, other studies do not show this.