Omega-3 fatty acids, found in wild fish and certain nuts and seeds like flaxseeds, are healthy fats that help determine how well your brain, eyes, heart, and immune system work.
That's because omega-3s affect every cell in your body. They help form the cell membranes of all of your trillions of cells and regulate hormones and inflammation throughout your system.
Think about it: If you're not getting enough omega-3s, your body -- including your brain -- just can't work to its optimum potential!
On the other hand, Americans are getting way too much linoleic acid, which you'll find in oils made from soy and seeds. The problem? All that linoleic acid isn't normal. In fact, our bodies evolved to eat more omega-3 fatty acids, not linoleic acid. For millions of years, humans got most of their fats from seafood, not French fries and donuts.