"The World's Best Nutritional Shake for Kids". Phenom Young Athlete is 100% all-natural, and nutritionally correct. Our protein powder is from Grass fed cattle, carbs from sweet potatoes and whole grain brown rice. Non-GMO, hormone free, steroid free and gluten free. No artificial flavors, colors or sweeteners and it tastes great! Kids play more sports today than ever before and just like adults, kids can get a real competitive advantage before and after games with the correct nutrition.