Which set of fatty acids is most effective  increasing the cholesterol levels?
Lauric (12:0), myristic (14:0), and palmitic (16:0) acids raise cholesterol levels and are found primarily in animal fat and dairy products. Palmitic acid, the fatty acid that most effectively raises serum cholesterol levels, is also the major fatty acid found in palm and coconut oils. Stearic acid and fatty acids that have fewer than 10 carbon atoms tend not to raise cholesterol levels. Polyunsaturated fatty acids such as linoleic and linolenic and oleic acid (an w-9 monounsaturated fatty acid found as approximately 70% of the total fatty acid in olive oil and 55% in canola oil) tend to lower cholesterol levels.
Linoleic and linolenic
Myristic and palmitic
Butyric and stearic
Oleic and palmitic