Curious about walnuts, Lykkers? This nutrient-packed food has a fascinating history, unique growing process, and surprising nutritional profile.

Here are some interesting facts that might make you appreciate walnuts even more!

1. Walnuts Are Technically Seeds, Not Nuts

Though we call them nuts, walnuts are technically the seeds of the walnut tree. The outer shell protects the seed inside, which we enjoy as a healthy snack. Botanically, true nuts don’t split open to release seeds, but walnuts do, placing them in a category called drupes alongside foods like peaches and cherries.

2. Ancient Origins of Walnuts

Walnuts have a rich history, dating back to ancient civilizations. They’re one of the oldest known tree foods, with evidence of cultivation in Persia over 7,000 years ago. The Greeks and Romans prized walnuts as Jupiter’s royal acorn, and they were considered a luxury food in early European cultures.

3. Walnut Trees Are Diverse

There are over 20 species of walnut trees globally, but the most common varieties are English walnuts (Juglans regia) and black walnuts (Juglans nigra). English walnuts are more commonly consumed because of their mild flavor and easier-to-crack shells, while black walnuts have a bolder, earthy taste and are used in certain specialty foods and crafts.

4. Walnuts Are a Natural Brain Food

One of the most interesting things about walnuts is that they resemble tiny brains! Interestingly, they’re known to support brain health thanks to high levels of omega-3 fatty acids, antioxidants, and vitamin E. Eating walnuts regularly has been linked to improved cognitive function and reduced oxidative stress.

5. Environmental Benefits of Walnut Trees

Walnut trees offer environmental benefits beyond their nutritious seeds. They help reduce soil erosion, contribute to biodiversity, and provide shade, cooling their surroundings. However, walnut trees also release a substance called juglone, which can be toxic to some nearby plants, preventing competition for resources.

6. A Global Favorite

Walnuts are popular worldwide, and they hold special significance in various cultures. In Italy, they’re traditionally used in holiday desserts, while in China, they’re considered a symbol of longevity and often gifted to wish good health. The largest producers today are the United States, China, contributing to a global love for walnuts.

With their ancient history, brain-boosting nutrients, and unique growing characteristics, walnuts are more than just a snack—they’re a fascinating part of both our diets and cultures. Next time you enjoy a handful, remember these fun facts and appreciate the walnut’s journey from tree to table!