In that case, how can they address the question "is fasting good for you"? They may as well write an article "can you believe your horoscope? what we know so fa

In that case, how can they address the question "is fasting good for you"? They may as well write an article "can you believe your horoscope? what we know so far" based on their personal experience. This is exactly the type of topics where I'd like to have scientific data as opposed to personal experiences.