Single ingredient. USA bison, air-dried in Colorado. Nothing added.

Seventy-three percent protein — eight points higher than beef lung. For the dog working hard enough that the difference matters.

Bison are never feedlot animals. No growth hormones — it's illegal. No routine antibiotics. They graze native grass their entire lives and the muscle reflects it — leaner than beef, higher in iron, a different fat profile entirely. You're not getting the product of an industry optimized for marbling. You're getting the animal.

3.5 calories per piece. Snaps to size with two fingers. In twelve years behind this counter I haven't seen a dog refuse dehydrated lung.

Five ounces goes further than you'd expect — lung weighs almost nothing. Dry to the touch, no odor.

B12, iron, folate, vitamin A. One ingredient doing several jobs."

• Single ingredient: USA bison lung
• Source: USA / Made in Colorado
• Production: air-dried, no additives, no preservatives
• Crude Protein 73% / Crude Fat 6% / Moisture 10%
• 3.5 kcal per piece — 101 kcal per oz
• Net weight: 5oz resealable bag
• Supervise while chewing. Fresh water available at all times.