Popsugar Family Little Kids Best Proteins For Kids A Nutritionist Ranked the 10 Best Proteins For Your Kids August 28, 2018 by Laurel Niedospial View On One Page Photo 8 of 10 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 Lean Beef Get ready to make some hamburgers! "Three ounces of beef contains 25g of protein, plus vitamins B6, B12, zinc, niacin and iron and choline," she revealed. Previous Next Start Slideshow Little KidsHealthy Eating TipsHealthProtein