Gail Frank, PhD, spokeswoman for the organization and professor of nutrition at California State University in Long Beach, says, "The body needs a minimum of carbohydrates for efficient and healthy functioning -- about 150 grams daily."

Hey, what ya know. This is the first time I've seen a registered dietician declare the minimum amount of carbs you need in a day. Although recent studies have shown that 120 grams is enough.

Let's see 150 x 4 = 600 calories - 2400 = 1800 !!! How do I make up the rest of the calories I need per day????