He runs a fasting clinic in South Africa. He did join CZ and got involved in a discussion a few years back, but he has not been back since. I'm sure he does not have time. Here is a link to his few posts on cz.
Last, but not least, he does practice what he preaches. He does a dry fast every week. He is also a Christian.
Congratulations on your fast. Are you weaker this time than the other times? Do you think you are fasting too much? I don't think that Dr. Kruger fasts more that 72 hours a week. Sometimes it is only for 24 hours.
I hope you get to feeling better soon. Maybe you should take a break from fasting for a little bit to build up nutrient stores. I'm not giving you advice because I am not an expert. It is just something to consider. I am just interested in your story and I am also pulling for you - wishing you the best in your fasting journey.