Arguably the most delicious nut due to their crunchy, rich, and buttery flavor, macadamias contain more monounsaturated fats — remember, the heart-healthy fat — than any other type of nut. Eating macadamias can help with reducing LDL cholesterol levels, which are known to clog arteries. They are also a good source of fiber, vitamin B, and contain minerals such as magnesium, calcium, and potassium. Even though they are packed full of nutritional benefits, you will need to be mindful of the high calorie and fat content. A 1-ounce serving of macadamia nuts equals about 200 calories. And before you think of treating Fido to a couple, you should know that macadamia nuts are toxic to dogs.