Question:
I'd like to spin up some conversation around the topic of drinking distilled water and how it relates to diabetes. No secrets here...I represent Quality Water Systems (http://www.qualitywatersystems.net). Yes...I'm going to put a plug in for our company, but more importantly I'd like to get some discussions started on this specific subject. It's been a matter of debate for some, and I'd like to get your thoughts on the topic (both positive and negative). Generally speaking, it's thought that drinking distilled water is good for diabetics in that your body doesn't have to work as hard to filter out contaminants that it otherwise would by consuming normal tap water. In other words, you body runs more efficiently when drinking distilled water since it doesn't have to burn energy eliminating waste or useless inorganic minerals found in most water. You thoughts...?

Answer: I have a reverse osmosis system under my sink. In addition to the RO unit and storage tank, it has 3 large prefilters, one for sediment and 2 charcoal for desolvolved gases. The water, when the filters have been recently changed, tastes as good as any other water I have tasted. Not quite as good if the filters are over 4 months old.

I have always wondered if the RO water is good for my health. Almost all minerals are removed. It is like drinking distilled water, no minerals. Taste aside, it might be better to drink tap water with all the minerals intact.

Hard water helps prevent heart problems developing Fluoride (deliberately added to drinking water) helps prevent tooth decay

So drink distilled/de-ionised/RO water and see your teeth rot while you have a heart attack

But seriously, DW/DI water has little taste and not very pleasant to drink, I don't think the OP's claimed advantages to drinking DW have much relevance.