If you've been steadfastly avoiding that big steak or bacon-and-egg breakfast, we have some good news to share with you. It comes from Nina Teicholz, author of the The Big Fat Surprise: Why Butter, Meat & Cheese Belong in a Healthy Diet.

Teicholz explained on Fox and Friends that since the 1950s, Americans have been told that saturated fat is bad and will contribute to heart disease. She noted that it all stems from one scientist, a pathologist named Ancel Benjamin Keys, who "in the face of the nation's fear of heart disease, came up with the idea that it was saturated fats that cause heart disease."

She said that his conclusion became "implanted" in what the American Heart Association has been telling Americans for decades. Teicholz said if you have the choice between bacon and eggs for breakfast or a bagel, pick the bacon and eggs.

"Your body needs fat to be healthy. ... The bagel is empty carbohydrates," she said, adding that Americans consume 25% more carbs than they did in the early 1970s, while cutting down on fat.

Now on to lunch... green salad or egg salad? Teicholz said go with the egg salad, pointing out that the cholesterol contained in eggs "does not translate into cholesterol in your blood." She said eating eggs gives your body various nutrients, especially from the yolk.

She went on to explain that when companies market something as low-fat, it often means they've replaced the fatty contents with sugars. Watch the full segment above.

In the clip below, hear more from Teicholz in her sit-down with Jenna Lee.