Hazelnuts-the nut case

Linked is an article on nuts. Justin's a huge fan of almonds. I was interested in this portion:
(See, so really I'm just self-medicating when I drink hazelnut coffee!)

HAZELNUTS
Why: Hazelnuts have the highest nut level of folate, a B vitamin known to reduce the risk of birth defects. Research indicates that it, along with other B vitamins, may also lower the risk of heart disease, cancer, and depression. Hazelnuts contain moderate levels of potassium, calcium, and magnesium, all of which can help lower blood pressure.
How: Add roasted hazelnuts to asparagus with lemon vinaigrette. They also go well with sweets, like granola yogurt parfaits.
One ounce = 21 nuts 178 calories, 4 g protein, 17 g fat