 The nutritional powerhouse that is beef. Hello, I'm Megan Grebner with Healthy Living on Brownfield. Beef is an all-star when it comes to packing a nutritional punch. Shailene McNeil is Executive Director of Nutrition Science, Health and Wellness for the National Cattlemen's Beef Association. One thing about beef's nutrients that I think of, both as a registered dietitian and a mom, is that beef has nutrients that are really beneficial during growth and development stages.