Walnuts are also an excellent source of essential vitamins and minerals. A quarter-cup (approx. 30 grams) provides 50% of your daily manganese needs, 23% of your copper, 11% of your magnesium, and nearly 5% of your iron.
Why Walnuts Are the Champion of Nuts
Among the many types of nuts, walnuts stand out. Research by Dr. Joe Vinson, a chemistry professor at the University of Scranton, found that walnuts contain more polyphenols—powerful antioxidants—and have a higher antioxidant potency than pistachios, almonds, pecans, cashews, Brazil nuts, hazelnuts, and macadamia nuts. In fact, the antioxidants found in walnuts are thought to be 15 times more potent than vitamin E. This powerful combination of antioxidants helps to combat free radicals and protect your cells from damage.
When you compare walnuts to almonds, the difference is clear. While almonds are a healthy choice, 100 grams of almonds contain far fewer antioxidants and a significantly lower amount of omega-3s than the same amount of walnuts. This high concentration of beneficial compounds is what makes walnuts so effective at promoting health.
How to Eat and Store Walnuts for Maximum Benefit
Just a small handful of walnuts a day is enough to reap their full health benefits. Research suggests that eating just 7 walnuts a day is sufficient. They are best consumed raw, as heat can diminish some of their nutrients. You can also soak them overnight to improve their nutrient profile and digestibility.
It’s highly recommended to eat the entire walnut, including the thin, brown skin. While some find the skin to be slightly bitter, it contains a high concentration of antioxidants that you would otherwise miss out on.
In-Depth Health Benefits of Walnuts
Let’s explore the specific ways that walnuts can boost your health.
Promote Healthy Brain Function
Walnuts’ high levels of antioxidants and omega-3s help to reduce inflammation and oxidative stress in the brain. This can help prevent degenerative brain diseases and improve overall cognitive function. Studies have shown that a diet rich in walnuts can improve mood in healthy individuals and may have the potential to slow the progression of Alzheimer’s disease. Their high omega-3 content can also positively impact memory and learning skills.