What Are Cashews? Cashews are kidney-shaped seeds that come from the cashew tree (Anacardium occidentale), native to Brazil but now widely grown in India, Vietnam, and Africa. Unlike other nuts, cashews grow outside the fruit (the cashew apple), attached at the bottom. Health Benefits Heart Health – Good fats and magnesium support healthy cholesterol and blood pressure. Bone Strength – Rich in copper, magnesium, and phosphorus. Brain Function – Zinc and healthy fats help cognitive health. Weight Management – Though calorie-dense, they promote satiety and can support controlled weight loss when eaten in moderation. Antioxidants – Contain compounds that protect cells from oxidative stress.