Chef David started producing sweet potato treats for dogs after he was informed by a veterinarian of the dangers of giving rawhide to dogs. Sam's Yams use high quality USA sourced sweet potatoes to provide a wholesome and natural treat. Sweet Potatoes are a source of Vitamin A, B6, Calcium, Potassium, Phosphorus, Iron, Thiamin, Riboflavin, Niacin. They are known for being a good source of anti-oxidant and fiber too! Sam's Yams Dog Treats are wholesome snacks that are packed with flavor and nutrition.