My easy keeper mare is now 23 years old and although she’s always been healthy, now she’s looking thin. She lives on 30+ acres most of the time with 3 other horses. (I say most of the time; sometimes they are fenced off in a smaller area.) What should I be giving to supplement her at this point? She seems hungry.

Answer by Ph.D. Equine Nutritionist, Kelsey Johnson Nonella:

It would be good to supplement all of your horses with a vitamin/mineral supplement like Horse Guard because it will address any deficiencies in their diet. Now, that your mare is getting older and is starting to get thin I would recommend starting her on Super Weight Gain. It will address any vitamin/mineral deficiencies that she has, provide her more energy, and help to stabilize her gut so she can get more out of the food she is eating. As horses age, their ability to digest decreases. For this reason, I would recommend keeping her on the Super Weight Gain. I would also recommend giving her continuous access to high-quality hay.


Hope this helps.  Let me know if I can answer any more questions for you.

Super Weight Gain


About Dr. Kelsey J. Nonella Ph.D., P.A.S.

Kelsey J. Nonella, Ph.D. is an equine nutritionist who was riding horses before she could walk. Her love for horses drives her to help educate people on what their horses’ needs in order to have happy, healthy horses. Kelsey went to Cal Poly receiving a Bachelor’s of Science in Animal Science and then onto West Texas A&M, where she got her Masters and eventually her Doctorates in Equine Science. At A&M, Dr. Nonella did extensive research on Selenium within horses. Click here to view her research. Kelsey’s colleagues have mentioned her as one of the United States equine Selenium experts.
View all posts by Dr. Kelsey J. Nonella Ph.D., P.A.S.


  1. Rhonda Hoffman says:

    I received the free sample of Horse Guard to see if I can put some weight on my 26 year old Mare. She always looses weight in the winter. Only problem is she eats around the supplement and most of it is left in the bottom of the bucket. Any suggestions?

    • mm Dr. Kelsey J. Nonella Ph.D., P.A.S. says:


      I have had really good success adding apple cider vinegar, aloe vera juice, and flaxseed oil to the grain and supplement so it all sticks together(and they typically really like the flavor). Also, you may consider starting with 1/2 of scoop and then slowly increasing to the full dose.

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