[Nancy1999]

Originally Posted by tem_sat

According to the Adult Healthy Mobility page found here Adult Healthy Mobility? - Dry, it states:

"Enriched with high levels of Omega-3 fatty acids; plus Glucosamine and Chondroitin Sulfate from natural sources - Science Diet® Adult Healthy Mobility™ dog food helps maintain ease of movement and is formulated to support bone and joint cartilage."

To me, I understand that to read that they are not "adding" Glucosamine and Chondroitin, but instead stating that it is coming from natural sources.

The ingredient list shows:
Whole Grain Corn, Whole Grain Wheat, Chicken By-Product Meal, Soybean Meal, Animal Fat (preserved with mixed tocopherols and citric acid), Chicken Liver Flavor, Corn Gluten Meal, Flaxseed, Fish Oil, Dried Beet Pulp, Lactic Acid, Powdered Cellulose, Soybean Oil, Natural Flavor, Potassium Citrate, DL-Methionine, Choline Chloride, L-Lysine, Calcium Carbonate, vitamins (L-Ascorbyl-2-Polyphosphate (source of vitamin C), Vitamin E Supplement, Niacin, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Riboflavin, Folic Acid, Vitamin D3 Supplement), Taurine, Vitamin E Supplement, minerals (Manganese Sulfate, Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Calcium Iodate, Sodium Selenite), Iodized Salt, L-Tryptophan, L-Threonine, preserved with Mixed Tocopherols and Citric Acid, L-Carnitine, Phosphoric acid, Beta-Carotene, Rosemary Extract.

I assume the "natural sources" are the Chicken By-Product Meal?

I know many people are going to read so much into this, but all you have to do is read the FDA letter, it states:

Some structure/function claims, however, imply that the product has an impact on disease. Although a food may make claims that refer to the product’s ability to maintain healthy structure or function, structure/function claims that imply the product is intended to diagnose, cure, mitigate, treat, or prevent disease are classified as “disease claims” and the product for which the claims are made is regulated as a drug.[2] FDA evaluates the context in which a structure/function claim is made to determine whether it is a disease claim. See 21 C.F.R. §101.93(g).[3]

So it's only because they used the word "arthritis" which is a disease.