Becel® products are actually made with vegetable oils (canola, sunflower or olive). Each type of Becel® is non-hydrogenated, contains no trans fat and is low in saturated fat. Margarine Myth. Margarine was invented to fatten up turkeys.ecel® products are actually made with vegetable oils (canola, sunflower or olive). Each type of Becel® is non-hydrogenated, contains no trans fat and is low in saturated fat. Margarine Myth. Margarine was invented to fatten up turkeys.