I am not sure what you are scared of?
I suppose many fasters buy their own distilled, or purchase a relatively inexpensive counter-top distiller for home use.
I buy my own distilled and only use it when fasting.

I would also think that there would be little if any noticeable difference in drinking mineral water and then distilled, but it is significant that todays fasting supervisors use distilled water only. I do know that Dr Joel Fuhrman MD uses distilled spring water for his fasting patients.

Sorry I cant be more helpful.

Chrisb1.

I buy my distilled water in plastic 4liter bottles in Walmart since I do not own any distiller. As long as I know, distilled water is the best water to consume while water only fasting because its free floating molecules carry all the toxins away from the body like empty backpacks.

Love,
Anne