A 2006 review concluded that there was no link between omega-3 fatty acids consumption and cancer. This is similar to the findings of a review of studies up to February 2002 that failed to find clear effects of long and shorter chain omega-3 fats on total risk of death, combined cardiovascular events and cancer.
The cultivated forms are of the species sweet cherry (P. avium) to which most cherry cultivars belong, and the sour cherry (P. cerasus), which is used mainly for cooking. Both species originate in Europe and western Asia; they do not cross-pollinate.
Chokecherry refers to the fruit and the tree Prunus Virginiana, which grows in abundance in North America. These tiny cherries, generally about .4 inches (1 cm) in diameter when fully grown are relatives to the black cherry. Unlike their edible relatives, chokecherries are generally not edible, at least for humans.