3 Tricks to healthy eating.

[Traver]

A little bit of misinformation here. The ecig part is at the bottom of the article.

One thing that troubles us is that you apparently get some of the toxin propylene glycol. Though the risks may be slight and the devices are promising, using them makes you a guinea pig in an unofficial market test of an unregulated product.

3 Tricks to eat healthy and live longer - San Antonio Express-News

 

[Vocalek]

This document is published by the CDC on the Health Effects of PG

http://www.atsdr.cdc.gov/ToxProfiles/tp189-c2.pdf

Section 2.2.1 (starts on Acrobat Page 3) discusses effects from inhalation exposure.

In rhesus monkeys and rats, continuous exposure to concentrations of propylene glycol up to 112 ppm for 13-18 months caused no adverse effects on the respiratory system (Robertson et al. 1947). These studies do not indicate a basis for concern because comparable exposure conditions do not occur for the general population.

I have no idea how those concentrations compare to what we inhale and whether body size makes a difference.

 

[Traver]

I can't say that I completely understand everything in that paper except that we have nothing to worry about at the levels we use.