In the world of fitness nutrition, trends come and go, but some foods remain timeless. Beef liver is one of the most powerful yet underrated cuts of meat, offering exceptional nutritional value at a ...

When Rob McDaniel makes smoothies for his four kids, he tosses in berries, some wildflower honey and an ounce or two of raw beef liver. “They think that’s what smoothies taste like,” says McDaniel, a ...