5 Surprising Health Benefits of Raw Cashews

Cashews are more than just a tasty snack — they're a nutritional powerhouse backed by decades of scientific research. Here are five benefits that might surprise you.

1. Heart Health Champion

A landmark study published in the Journal of Nutrition found that people who consumed nuts (including cashews) five or more times per week had a 35% lower risk of coronary heart disease. Cashews are particularly beneficial because they're rich in oleic acid — the same heart-healthy monounsaturated fat found in olive oil. Additionally, cashews contain zero cholesterol and are rich in plant sterols, compounds that actively block cholesterol absorption in the gut.

2. Blood Sugar Regulation

Despite being relatively high in carbohydrates for a nut, cashews have a low glycemic index. Research shows that including cashews in meals can actually reduce post-meal blood sugar spikes by up to 20%. The combination of healthy fats, protein, and fiber slows digestion and provides sustained energy.

3. Brain Booster

Cashews are one of the richest food sources of copper, a mineral essential for brain development and function. Copper plays a critical role in the production of neurotransmitters like dopamine and norepinephrine, which regulate mood, attention, and motivation. Just one ounce of cashews provides 70% of your daily copper needs.

4. Bone Strength

While dairy gets all the attention for bone health, cashews quietly deliver impressive amounts of bone-building minerals. They're rich in magnesium (which helps absorb calcium), phosphorus (a key structural component of bones), and vitamin K (which directs calcium to bones rather than arteries).

5. Eye Protection

Cashews contain significant amounts of lutein and zeaxanthin — antioxidants that accumulate in the retina and protect against harmful blue light and age-related macular degeneration. In our screen-heavy world, this benefit is more relevant than ever.

How Much Should You Eat?

Most nutritionists recommend a serving of about 28g (roughly 18 cashews) per day. This provides substantial benefits without excessive calorie intake. Raw or lightly roasted cashews retain the most nutrients — avoid heavily salted or oil-roasted varieties for maximum health benefits.