Title: Saturated and unsaturated compounds
Content:   The terms saturated vs unsaturated are often applied to the fatty acid constituents of fats. The triglycerides (fats) that comprise tallow are derived from the saturated stearic and monounsaturated oleic acids. Many vegetable oils contain fatty acids with one (monounsaturated) or more (polyunsaturated) double bonds in them.
Title: Saturated fat
Content:  one of the two C atoms. Glyceride fats without any carbon chain double bonds are called saturated because they are "saturated with" hydrogen atoms, having no double bonds available to react with more hydrogen. Most animal fats are saturated. The fats of plants and fish are generally unsaturated. Various foods contain different proportions of saturated and unsaturated fat. Many processed foods like foods deep-fried in hydrogenated oil and sausage are high in saturated fat content. Some store-bought baked goods are as well, especially those containing partially hydrogenated oils. Other examples of foods containing a high proportion of saturated fat 
Title: Human nutrition
Content:  A molecule of dietary fat typically consists of several fatty acids (containing long chains of carbon and hydrogen atoms), bonded to a glycerol. They are typically found as triglycerides (three fatty acids attached to one glycerol backbone). Fats may be classified as saturated or unsaturated depending on the chemical structure of the fatty acids involved. Saturated fats have all of the carbon atoms in their fatty acid chains bonded to hydrogen atoms, whereas unsaturated fats have some of these carbon atoms double-bonded, so their molecules have relatively fewer hydrogen atoms than a saturated fatty acid of the same length. Unsaturated fats may be further classified as monounsaturated (one double-bond) or polyunsaturated (many double-bonds). Furthermore, depending on the location of the double-bond in the fatty acid chain, unsaturated fatty acids are classified as omega-3 or omega-6 fatty acids. Trans fats are a type of unsaturated fat with trans-isomer 
Title: List of unsaturated fatty acids
Content:  The following fatty acids have four unsaturated bonds.
Title: List of unsaturated fatty acids
Content:  The following fatty acids have one unsaturated bond.
Title: Fat
Content:  oils, and processed foods that are deep-fried in hydrogenated oil are high in saturated fat content. Plants and fish oil generally contain a higher proportion of unsaturated acids, although there are exceptions such as coconut oil and palm kernel oil. Foods containing unsaturated fats include avocado, nuts, olive oils, and vegetable oils such as canola. Many careful studies have found that replacing saturated fats with cis unsaturated fats in the diet reduces risk of cardiovascular diseases, diabetes, or death. These studies prompted many medical organizations and public health departments, including the World Health Organization, to officially issue that advice. Some 
Title: Fat
Content:  Assuming given that unsaturated fatty acids (UFAs) are generally healthier than saturated ones (SFAs), another question that has gained attention in recent decades is the risks and benefits of monounsaturated fatty acids (MUFAs, with a single double bond) versus polyunsaturated fatty acids (PUFAs, with two or more double bonds). The most common fatty acids in human diet are unsaturated or mono-unsaturated. Monounsaturated fats are found in animal flesh such as red meat, whole milk products, nuts, and high fat fruits such as olives and avocados. Olive oil is about 75% monounsaturated fat. The high oleic variety sunflower oil contains at least 70% monounsaturated fat. Canola oil and cashews are both about 58% monounsaturated fat. Tallow (beef fat) is about 50% monounsaturated fat. and lard is about 40% monounsaturated fat. Other sources include hazelnut, avocado oil, macadamia nut oil, grapeseed oil, groundnut oil (peanut oil), sesame oil, corn oil, popcorn, whole grain wheat, cereal, oatmeal, almond oil, sunflower oil, hemp oil, and tea-oil Camellia. Polyunsaturated fatty acids can be found mostly in nuts, seeds, fish, seed oils, and oysters. Food sources of polyunsaturated fats include:
Title: List of unsaturated fatty acids
Content:  The following fatty acids have two unsaturated bonds.
Title: List of unsaturated fatty acids
Content:  The following fatty acids have five unsaturated bonds.
Title: List of unsaturated fatty acids
Content:  The following fatty acids have three unsaturated bonds.

Question: unsaturated fats are comprised of lipids that contain?
Answer: double bond.
at least one double bond.