Polyunsaturated fats are good for lowering blood cholesterol level since it contains omega-6 fatty acids. They are naturally present in many plant foods and seeds such as sunflower, soybean, walnuts, sesame, maize, corn, mayonnaise, margarine, cottonseed and safflower. Polyunsaturated fats decrease the bad cholesterol LDL (low density lipoprotein) and triglyceride levels. It also has omega 3 fatty acid which is healthy for our heart and are mostly found in seafoods. They help increase the level of good blood cholesterol HDL, which stands for High Density Lipoprotein.
Polyunsaturated fats are typically in liquid form at room temperature. Because they exist as a double bonded molecule, it is easier to break them down. Polyunsaturated fats are beneficial when eaten in moderation and consumed from foods. Their full beneficial effects are when they are about 30 percent of the total calories in the diets we consume in a day. Polyunsaturated fats contain 9 grams of calories.They are essential for the development and growth of our brain and body.
They include omega 3 and 6 fatty acids that our human body can not manufacture naturally but is needed for metabolic functioning. In conclusion, polyunsaturated fats contains fatty acids that negatively impact bad blood cholesterol level by decreasing it and positively effecting the good blood cholesterol HDL by increasing it.