... a really nice service. And, on the Food score page, you should scroll down and click "The dirty dozen of food additives", under EWG Reports about Food. - the 8th one down, Theobromine is highly interesting.
1. Food ratings - scores - (Environmental Working Group) EWG.org:
Link to Food scores - EWG.org
2. Produce: Which ones have bad and which ones have ok pesticides: - EWG.org:
Dirty Dozen - EWG.org
Clean Fifteen - EWG.org