Here are three general examples of fatty acids which can be used to make fats such as a triglyceride. The first one is a trans fatty acid which could make a trans fat. Now these are synthetically made. They don't trans fats do not occur in nature. On the other hand, cysts, fats or cysts fatty acids do occur in nature such as in this one, oleic acid which occurs in olive oil. And then there are saturated fats and here's which are made of saturated fatty acids, for example, steric acid.