I was just on my favorite vendor's site and saw that their French Vanilla flavoring comes with a warning about being custard based. I did some reading here and on the Web and see that with certain flavorings that are intended for consumption in food only major lung issues can occur. I love this vendor's French Vanilla liquid that I bought. Now I see I am going from one lung killer to another! This is by far the best one that I have had from them but am still looking for that one flavor that will keep me away from cigarettes. Maybe I should just be put into a padded cell for 3 months to quit altogether! This was always my joke on how I would be able to finally quit cigarettes!