On the Caribbean island of Guadeloupe, a researcher examined 35 patients with atypical Parkinson' s disease and compared their eating habits to those of 65 healthy adults  She found that all of the patients with atypical Parkinson' s regularly ate the tropical fruits soursop, custard apple, and pomme cannelle, whereas only 10 of the healthy adults regularly ate these fruits
From this, she concluded that eating these fruits causes atypical Parkinson' s
Of the healthy adults who did not regularly eat soursop, custard apple, and pomme cannelle, most had eaten each of these fruits on at least one occasion.