The Original Long-Lasting Chew Bone. Introduced in 1998, The Original was the first long-lasting edible and digestible chew bone. The unique shape of The Original effectively cleans the upper and lower teeth by removing plaque and tartar buildup. Edible & Digestible. Water-Soluble & Biodegradable. No Added Salts or Sugars. No Artificial Preservatives or Colorants. Ingredients: Soy protein concentrate, deionized water, gelatin, wheat gluten, glycerin, corn gluten meal, garlic powder, chicken meal, brewers yeast, lecithin, calcium carbonate, tricalcium phosphate, carrageenan gum.