I didn't start drinking distilled till half way threw my water fast. Before that I drank spring ,but the taste of spring water made me want to throw up. So I switched to distilled, and looking back that is when my energy levels started to tank. Now during this refeeding my tongue has been white, yet it was bright red when I started eating after fasting to completion. I also would drink both spring and distilled the first 2-3 days( and tongue would go from red to white and I didn't know why). The last couple days I have only drunk distilled and have gotten a red rash on my belly,white tongue,and water retention swollen ankles in my feet.
Yesterday I went to my sister's house and was drinking her filtered water, and noticed that my tongue was starting to turn pink again. I haven't drank much today but the swelling in my feet is going down, and the rash is fading. I'm not trying to say distilled is 100% bad but I think if your already toxin free for the sake of your health you shouldn't drink it.
I had a similar experience during my current 40 day fast. I am on day 27.
I have been drinking distilled water since the beginning of my fast until the 24th day. I noticed that my body was weak and I didn't have any energy, but it was to the point where I felt like I would be malnutritioned.
From 20-24 I began vomiting brown vile. I'll just keep the details to myself. It was pretty ugly.
My energy level started to swoop down pretty low. I felt as if my body was telling me, your missing out on simple elements needed for the body to function.
Then I switched to mineral water. I don't know what your opinion on mineral water during a fast is and certainly I don't care. My body is still in ketosis as my lungs still smell like acetone and I feel weakness, but not the type of headache associated weakness I had during the time I drank distilled water.
IMHO, I think mineral water is great for water fasting.
I am sold . Can anybody recommend a good distiller? I will likely purchase it on line.