The word "unsaturated" means not completely filled or occupied. It is often used to describe a substance that has room for more molecules or atoms to attach or react with. Full definition
Published recently in the Annals of Nutrition and Metabolism, the study is believed to the first to examine the effects of replacing saturated fats with unsaturated fats in the diets of more than 660 metabolically healthy individuals who were overweight or obese. (sciencedaily.com)
Almonds also contain high levels of healthy unsaturated fatty acids in addition to many bioactive molecules that can help lower cholesterol, reduce the risk of several cancers, and prevent cardiovascular heart diseases. (fodmapfriendly.com)
We require a certain amount of unsaturated fat in our diets, and cutting out the good stuff (extra virgin olive oil, avocado and canola oil to name a few) will only result in thirsty, dehydrated skin. (womenshealthandfitness.com.au)