10 g protein. 6 g fiber. Vegan. Non GMO Project verified. nongmoproject.org. Certified gluten-free. Created, owned and operated by registered dietitian nutritionists. What is Zing? Vigor. Vitality. Zest. As nutrition counselors, we wanted a better on-the-go choice for our patients and our own kids. So we created Zing Bars to provide a smart balance of high quality protein, slow-burn carbs, good fats and dietary fiber. Free of gluten and soy protein. All this, plus an amazing Zing taste we know you'll love. Real nutrition. Real energy. Real Zing! Zing Bars are produced in a facility that is certified by the Gluten-Free Certification Organization (GFCO).