an unsaturated fatty acid whose carbon chain has more than one double or triple valence bond per molecule; found chiefly in fish and corn and soybean oil and safflower oil

a polyunsaturated fatty acid with 18 carbon atoms; the only omega-3 fatty acid found in vegetable products; it is most abundant in canola oil; a fatty acid essential for nutrition

an omega-3 fatty acid with 22 carbon atoms; found in fish (especially tuna and bluefish)

an omega-3 fatty acid with 20 carbon atoms; found in fish (especially tuna and bluefish)