BUFF Original Bison Snack Stick pack 7g of nitrate/nitrite-free protein per serving and are paleo and keto-friendly. Fermented and Cold Smoked with a natural collagen casing, shelf stable, refrigerate after opening. Vacuum-sealed to preserve freshness and its smoky flavour, BUFF Original Bison Snack Sticks are the perfect portable high protein snack. We fuel BUFF athletes, BUFF adventures and BUFF kids!