5. High Protein Bar by Premier Protein Premier Protein has created this healthy snack with a high protein percentage and low sugar. This box includes 16 protein bars of 1.4 oz, with 50% of the ...

The 38-year-old cofounder of nutrition bar brand RxBar thinks about protein constantly—and not just for his own health. Rahal has been dreaming of creating a new bar the day he and his cofounder ...