Bests & Worsts Reviews from Amazon

Please see below ********* I have definitely noticed a difference in our 9 yr old cockapoo that was hesitating going up and down stairs and our bed. She has been running outside like her old youthful self in just six weeks. I began to notice a difference after two weeks little by little. I am concerned tho please answer me back about the label ****************** On back that says made in the USA It also says smaller with international ingredients. What are those ? Since it is not FDA regulated how do we know it’s safe ? I have compared Ingredients to others I would Like to continue but the other ones I have compared don’t say international ingredients. This is how many many dogs got ill or died from treats and dog foods because of international ingredients please explain .