Yes
1 Instead, use oils that are low in saturated fats and high in monounsaturated and polyunsaturated fats such as canola oil, olive oil and flax seed oil. 2  minimize using commercially packaged foods which are high in trans fats. 3  Always read labels to look for trans-fat free alternatives. Monounsaturated Fats. Monounsaturated fats (MUFAs) lower total cholesterol and LDL cholesterol (the bad cholesterol) while increasing HDL cholesterol (the good cholesterol). Nuts including peanuts, walnuts, almonds and pistachios, avocado, canola and olive oil are high in MUFAs. You find monounsaturated fats in vegetable oils like canola, peanut and olive oil, as well as in nuts. These fats are usually liquid at room temperature. Polyunsaturated fatty acids (PUFAs) are missing two or more hydrogen pairs on their fatty acid chains.  1 Polyunsaturated oils are liquid at room temperature and in the refrigerator. 2  Common sources of polyunsaturated fat are safflower, sesame and sunflower seeds, corn and soybeans, many nuts and seeds, and their oils. 3  Monounsaturated oils are liquid at room temperature but start to solidify at refrigerator temperatures. 1 Canola, olive, and peanut oils, and avocados are sources of monounsaturated fat. 2  Both types of unsaturated fats may help lower your blood cholesterol level when used in place of saturated fat in your diet. 3  Remember to be moderate in your intake of all types of fat. So, while polyunsaturated fats are definitely “good” and “healthy” and a key part of your fat intake and overall diet, it’s the essential fatty acids (and their ratio in your diet) that makes it so “good” and “healthy” in the first place. Monounsaturated fat, which is most abundant in foods like nuts and various plant oils (olive oil, canola oil, etc.), will most often end up comprising the majority of your total fat intake. For the most part, this is a good thing. A polyunsaturated fat has two or more double bonds in its carbon chain. There are two main types of polyunsaturated fats: omega-3 fatty acids and omega-6 fatty acids. The numbers refer to the distance between the beginning of the carbon chain and the first double bond. Both types offer health benefits. For long-term health, some fats are better than others. Good fats include monounsaturated and polyunsaturated fats. Bad ones include industrial-made trans fats. Saturated fats fall somewhere in the middle. This structure keeps monounsaturated fats liquid at room temperature. Good sources of monounsaturated fats are olive oil, peanut oil, canola oil, avocados, and most nuts, as well as high-oleic safflower and sunflower oils. For long-term health, some fats are better than others. Good fats include monounsaturated and polyunsaturated fats. Bad ones include industrial-made trans fats. Saturated fats fall somewhere in the middle. Polyunsaturated fats are lipids in which the constituent hydrocarbon chain possesses two or more carbon–carbon double bonds. Polyunsaturated fat can be found mostly in nuts, seeds, fish, algae, leafy greens, and krill. While it is the nutritional aspects of polyunsaturated fats that are generally of greatest interest, these materials do also have non-food applications. 1 Use oils high in polyunsaturated fats like corn, soybean, safflower, sunflower, and cottonseed oils instead of coconut oil, palm oil, or hydrogenated vegetable fats. 2  Use liquid oils instead of butter, lard, or hardened vegetable shortening. 1 Canola, olive, and peanut oils, and avocados are sources of monounsaturated fat. 2  Both types of unsaturated fats may help lower your blood cholesterol level when used in place of saturated fat in your diet. 3  Remember to be moderate in your intake of all types of fat. 1 Polyunsaturated fat. 2  This is a type of fat found mostly in plant-based foods and oils. 3  Evidence shows that eating foods rich in polyunsaturated fats (PUFAs) improves blood cholesterol levels, which can decrease your risk of heart disease. 4  PUFAs may also help decrease the risk of type 2 diabetes. 5  Omega-3 fatty acids.  A diet high in saturated fat -- found in animal products and some vegetable oils -- can lead to heart problems, but eating the right amount of unsaturated fats can protect the heart. Unsaturated fats -- including monounsaturated and polyunsaturated fats -- are considered good-for-you fats. Polyunsaturated fats include the famed omega 3 and omega 6 fats, both considered essential fatty acids, because our bodies can't make them on its own.
http://www.healthcastle.com/goodfats-badfats.shtml http://www.fitday.com/fitness-articles/nutrition/fats/the-difference-between-polyunsaturated-fat-and-monounsaturated-fat.html http://extension.illinois.edu/diabetes2/subsection.cfm?SubSectionID=46 http://www.acaloriecounter.com/diet/monounsaturated-fat-polyunsaturated-fat/ http://www.health.harvard.edu/staying-healthy/the-truth-about-fats-bad-and-good http://www.health.harvard.edu/staying-healthy/the-truth-about-fats-bad-and-good https://en.wikipedia.org/wiki/Polyunsaturated_fat http://extension.illinois.edu/diabetes2/subsection.cfm?SubSectionID=46 http://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/fat/art-20045550 http://www.huffingtonpost.com/2014/10/27/high-healthy-fat-foods_n_6036448.html
are polyunsaturated fats good