Unsaturated fats are considered the ‘healthy’ fats and they’re important to include as part of a healthy diet. These fats help reduce the risk of high blood cholesterol levels and have other health benefits when they replace saturated fats in the diet.Click to see full answer. Moreover, why are unsaturated fats healthier chemistry? Chemistry and nutrition Saturated fats are useful in processed foods because saturated fats are less vulnerable to rancidity and usually more solid at room temperature than unsaturated fats. Unsaturated chains have a lower melting point, hence these molecules increase the fluidity of cell membranes. which fat is good saturated or unsaturated? Eating more unsaturated fat than saturated and trans fats can reduce your risk of heart disease and improve “good” (HDL) cholesterol levels. Accordingly, what do unsaturated fats do for your body? Polyunsaturated fats can help lower your LDL (bad) cholesterol. Cholesterol is a soft, waxy substance that can cause clogged or blocked arteries (blood vessels). Polyunsaturated fats include omega-3 and omega-6 fats. These are essential fatty acids that the body needs for brain function and cell growth.How do unsaturated fats affect cholesterol?Dietary fat, especially saturated and trans fats, may raise blood levels of total and LDL cholesterol. Replacing some saturated fats with polyunsaturated and monounsaturated fats (especially olive and canola oil) can help lower blood cholesterol. Higher levels of HDL cholesterol help lower the risk for heart disease.