From Shape.com…..
Walnuts may not have as huge of a following as peanuts, almonds, or even cashews, but that doesn’t mean they lack in the nutrition departments. For starters, walnuts are an excellent source of ALA, a plant-based omega-3 fatty acid. And they’re rich in other nutrients: One ounce of walnuts contains four grams of protein, two grams of fiber, and 45 milligrams of magnesium.