Hi: I was a research analytical chemist until I retired in 1990. I worked mainly with pharmaceutical with a short stint at a nuclear facility, and I have been exposed to thousands of organic and inorganic chemicals, intermediates, solvents, you name it. Indeed they can be hazardous to your (and my) health. Likewise, a listing of food staples found contaminated with extraneous chemicals, or insect components, or rodent excrements is published periodically by the FDA. Should that not repel you, perhaps allergenic substances will. Then, we would have to eliminate most fats, carbohydrates, and proteins from our diet. Maybe that is why MY WIFE is afflicted with PD. I guess I should have been more careful; and so I am trying ...in the kitchen... Good luck with your experiments. Ciao. Michel