Martin Berkhan created a very lucrative coaching platform with Intermittent Fasting: https://leangains.com/
Many books have been written on IF for profit:
https://www.amazon.com/Complete-Guide-Fasting-Intermittent-A...
https://www.amazon.com/Eat-Stop-Brad-Pilon/dp/177511080X/ref...
And countless others.
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Martin Berkhan created a very lucrative coaching platform with Intermittent Fasting: https://leangains.com/
Many books have been written on IF for profit:
https://www.amazon.com/Complete-Guide-Fasting-Intermittent-A...
https://www.amazon.com/Eat-Stop-Brad-Pilon/dp/177511080X/ref...
And countless others.