What this means: Cashews are an excellent snack choice for anyone concerned about blood sugar—including those with diabetes or prediabetes.

3. Your Brain Gets Essential Minerals

Cashews are exceptionally rich in copper—providing two-thirds of your daily needs in just one ounce. Copper is essential for:

  • Maintaining nerve cells and their insulating sheaths

  • Producing neurotransmitters (chemical messengers in the brain)

  • Supporting energy production in brain cells

They’re also a good source of magnesium, which plays a role in brain plasticity—the brain’s ability to adapt and form new connections.

4. Your Bones May Strengthen

Cashews provide several minerals essential for bone health:

  • Magnesium – Helps calcium absorption and activates vitamin D

  • Manganese – Supports bone mineralization

  • Phosphorus – A key component of bone structure

  • Copper – Helps maintain collagen and elastin in bone tissue

The research: Adequate intake of these minerals is associated with higher bone density and reduced fracture risk, particularly in older adults.

5. Your Immune System Gets Support

Zinc is crucial for immune function—and cashews provide about 15% of your daily needs per ounce. Zinc helps:

  • Develop and activate immune cells

  • Reduce oxidative stress and inflammation

  • Support wound healing

For vegetarians and vegans, cashews can be an important source of this immune-supporting mineral.

6. Your Red Blood Cells Benefit

The copper and iron in cashews work together to support healthy red blood cells. Copper helps your body absorb and utilize iron, which is essential for:

  • Forming hemoglobin (the protein that carries oxygen)

  • Preventing anemia

  • Maintaining energy levels

7. Your Weight May Be Easier to Manage

This might seem counterintuitive—nuts are calorie-dense, after all. But research consistently shows that nut consumption is associated with healthier body weight, not weight gain.

Why:

  • Protein and fiber increase satiety (you feel fuller longer)

  • Some calories may not be fully absorbed (nuts are structurally resistant to complete digestion)

  • Replacing less healthy snacks with nuts reduces overall calorie intake

The research: A 2019 meta-analysis found that higher nut intake was associated with lower long-term weight gain and reduced risk of obesity.

8. Your Skin May Benefit

The combination of copper, zinc, and healthy fats in cashews supports skin health: