What are walnuts?
Walnuts are the edible seeds of walnut trees (Juglans regia). They are naturally rich in healthy fats, plant protein, dietary fibre and antioxidant plant compounds, making them one of the world's most nutritious nuts.
What makes walnuts different from other nuts?
Walnuts are unique because they naturally contain particularly high amounts of alpha-linolenic acid (ALA), a plant-based omega-3 fatty acid. They also provide a rich supply of polyphenols and antioxidant nutrients.
What is ALA?
ALA (alpha-linolenic acid) is an essential omega-3 fatty acid naturally found in plant foods such as walnuts, flaxseed and chia seeds. Because the body cannot produce ALA on its own, it must be obtained through the diet.
Why are walnuts associated with brain health?
Walnuts naturally provide ALA omega-3, vitamin E and antioxidant polyphenols, which have made them one of the most researched whole foods for supporting healthy brain function and cognitive ageing. Their distinctive brain-like shape has also contributed to their long-standing association with memory and cognition.
Are walnuts a common allergen?
Yes. Walnuts are classified as tree nuts, which are recognised as major food allergens in the UK, EU and USA. Individuals with a tree nut allergy should avoid walnuts and products containing walnut-derived ingredients.
