Cashews are the seeds of the cashew tree. Cashews are very nutritious and powerhouses of proteins and essential minerals, including copper, calcium, magnesium, iron, phosphorus, potassium, and zinc. Sodium is also present in very small quantities. According to the USDA National Nutrient Database, cashews also contain vitamin C, B- vitamins thiamin, riboflavin, niacin), folate, and vitamin E (alpha-tocopherol), and vitamin k (phylloquinone). They are a source of oleic acid and provide a good quantity offat and low amounts of fats with no total cholesterol content when consumed in moderation.