I have just been given a horse.
She is wonderful and in good health but she is 15 years old. I know that this is not ancient for a horse by any means but I am looking to keep her healthy, sound, and happy for as long as possible. So, I am looking for a good supplement for her. We will not be doing anything too strenuous, mostly trail riding for now but next spring/summer I'll be riding more frequently and perhaps attending some local shows for fun. She is very talented but hasn't done much lately and we're going to take it easy but have some fun. What would you recommend?