These are the nuts worth going nuts for. Whether it is taking care of your heart or keeping you upbeat all the day, macadamia nuts can do it all. Macadamias are a rich source of Vitamin A, iron, protein, thiamin, riboflavin, niacin, and folates. They also contain moderate amounts of zinc, copper, calcium, phosphorus, potassium, and magnesium. Macadamia contains antioxidants like polyphenols, Amino acids, flavones, and selenium. It is also a good source of carbohydrates like sucrose, fructose, glucose, maltose, and some starch-based carbohydrates.