Filberts, which are also know as hazelnuts, are heart-healthy. Consuming just 1.5 ounces of filberts per day may help reduce the risk of cardiovascular disease according to the USDA. They rank number one among tree nuts in folate content. Filberts have the highest proanthocyaranidin content of any tree nut. They provide dietary fiber. Dietary fiber is a cholesterol-lowering nutrient and also contain manganese and copper. Enjoy filberts as a snack or use in your cooking and baking.