Try to drink at least 1. 5 litres (0. 40 US gal) of water a day. [3] X Trustworthy Source PubMed Central Journal archive from the U. S. National Institutes of Health Go to source

Sparkling water also doesn’t have any sugar or calories and will help keep you hydrated. Try flavored sparkling water for a tasty beverage that won’t break your fast.

Avoid adding sugar or creamer to your coffee, which will definitely break your fast! Try not to consume more than 500-600 mg of caffeine, which is about 4-7 cups of coffee, or you could experience anxiety, tremors, or a rapid heart rate. [7] X Trustworthy Source PubMed Central Journal archive from the U. S. National Institutes of Health Go to source

Avoid herbal teas that contain dried fruit for flavor. The sugar in the fruit can break your fast.

Choose apple cider vinegar instead of white vinegar. If the taste of pure apple cider vinegar is too strong, add it to a glass of water to dilute it.

Chewing gum can make you more hungry later, so use it towards the end of your fast to help you make it to your feeding window.

For instance, if you’re fasting because you’re overweight or have diabetes, imagine how much better you’ll feel to keep your mind off of temporarily being hungry. If you’re fasting to improve your fitness or appearance, focus on how good you’ll look if you can keep at it. Remember, you will eat again! Your fast is only for a certain amount of time and then you get to enjoy a nice meal.

You could also find something fun to do like play a video game or work on a hobby. You may be surprised how quickly your hunger fades when your mind is busy!

Aim to get at least 7 hours of sleep each night. Sleep is also super important to help your body recover and repair itself if you exercise.

Head to your local gym and hop on an elliptical bike or a rowing machine. Sign up for a group fitness class such as CrossFit, Zumba, or yoga.