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.
A traditional Limousin clafoutis contains pits of the cherries. The pits contain amygdalin, the active chemical in almond extract, so during baking a small amount of amygdalin from the pits is released into the clafoutis, adding a complementary note to its flavor.rigins [edit]. The clafoutis comes from the Limousin region of France, and while black cherries are traditional, there are numerous variations using other fruits, including red cherries, plums, prunes, apples, pears, cranberries or blackberries.