Prime Rib is a very healthy cut of beef. It contains nutrients like iron, B12, calcium, and zinc. A single serving also contains about 30-45% of our recommended daily protein intake. Because it is so high in protein, Prime Rib contains a full spectrum of amino acids including threonine, which is one we cannot produce ourselves! However, because it is such a fatty piece of meat, don’t overindulge. It also contains about 30-35% of our recommended daily fat intake! Also, keep in mind how the Prime Rib is served, if you’re eating it over mounds of buttered potatoes or swimming in creamy sauces, you’ll be changing the calories and nutritional facts quite a bit!