How Many Calories on Your Fasting Day

A question I often get asked is how much should you eat on your fasting days, and my answer is  always, you should act as if the fast never happened.

In an absolute Ideal world, if your target calorie intake is 2,400 calories, and you are doing a 24 hour  fast between Sunday and Monday, then your calorie total for Sunday and Monday should combine to be 2,400 calories.

However, I’m a realist and I know that this often does not happen. So as a general rule of thumb,  the calorie intake for the two days that bookend your fast will roughly fall somewhere around your normal daily calorie intake times 1.3 to 1.5.

As an example, if your daily goal calorie intake is 2,400 then your two fast days (in this example, Sunday and Monday) should add up to somewhere between 3,000 and 3,600 calories – or roughly 1,500 – 1,800 calories per day.

Do your best to keep this as simple as possible, and remember that completing a fast is not an excuse to overeat.


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