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Purina Animal Nutrition

Purina® Equine Senior® Horse Feed

Purina® Equine Senior® Horse Feed

*With Outlast® Gastric Support Supplement*

When our equine partners and trusted companions reach their golden years, their nutritional needs change. Maintaining good health requires consistent and complete nutrition, especially when their dental condition deteriorates and they can no longer effectively chew hay or pasture. Equine Senior® horse feed is carefully balanced with built-in hay to provide fiber that is easy to chew and digest to help meet the aging horse’s nutritional needs and support good health for years to come.

Regular price $32.49 USD
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#1 Veterinarian Recommended Senior Horse Feed

Four out of five equine veterinarians recommend Purina’s Equine Senior® Horse Feed to their clients with senior horses, according to an independent study conducted in 2019

Exclusive ActivAge® Prebiotic Technology

Patented formula includes ActivAge® Prebiotic Technology scientifically studied in senior horses to support optimal function of the aging immune system and optimal mobility in aged horses. The controlled sugar and starch formula, along with ActivAge® Prebiotic Technology, supports an appropriate metabolic response to feeding

Purina® Amplify® High-Fat Nugget

Multiple sources of fatty acids including stabilized rice bran, flaxseed, and vegetable oils help support body condition, shine and bloom

Outlast® Gastric Support

Scientifically shown to support gastric health and comfort and proper pH

Supports Digestion & Health

Easy to chew with highly digestible fiber to meet the needs of horses that cannot chew or digest long-stemmed forage

Easy to Chew

Easy-soak™ Pellet Technology for horses with worn or missing teeth, makes a soft, easy-to-chew mash when soaked in water

100% Vitamins & Minerals

Support overall health of senior horses*

*When fed as directed, with free-choice or added salt, based on Nutrient Requirements of Horses. Sixth Revised Edition – 2007, published by the National Research Council

Highly Fermentable Fiber Sources

Including beet pulp and hay to help maintain body condition and support healthy digestive function

NutrientMin / MaxAmount
Crude ProteinMIN14.00 %
LysineMIN0.70 %
MethionineMIN0.18 %
ThreonineMIN0.40 %
Crude FatMIN5.50 %
Crude FiberMAX18.00%
Acid Detergent Fiber (ADF)MAX23.00 %
Neutral Detergent Fiber (NDF)MAX39.00 %
Dietary StarchMAX12.00 %
SugarsMAX7.00 %
Calcium (Ca)MIN0.50 %
Calcium (Ca)MAX1.00 %
Phosphorus (P)MIN0.40 %
Sodium (Na)MAX0.55 %
Chloride (Cl)MIN0.40 %
Magnesium (Mg)MIN


PotassiumMIN1.20 %
Manganese (Mn)MIN220.00 PPM
Cobalt (Co)MIN0.60 PPM
Copper (Cu)MIN55.00 PPM
IodineMIN3.30 PPM
Selenium (Se)MIN0.30 PPM
Zinc (Zn)MIN220.00 PPM
Sulfur (S)MIN

0.45 PPM

Iron (Fe)MIN220.00 PPM
Vitamin AMIN3500 IU/LB
Vitamin D3MIN700 IU/LB
Vitamin EMIN140 IU/LB
ThiaminMIN11.34 mg/lb
RiboflavinMIN9.07 mg/lb

Start with the amounts of Equine Senior® horse feed given for the weight and lifestyle of the horse. After observing the horse for a period of time, the amount fed may be gradually increased or decreased to obtain the desired body condition and weight. For feeding directions outside the ranges addressed in these feeding charts, please contact your local Purina retailer or Purina Customer Service at 800-227-8941.



Equine Senior® Horse Feed (lbs/day)*
Light Work11.7514.7517.75
Moderate Work14.0017.2520.75
Breeding Stallion13.0016.2519.50

* Feeding recommendations are based on average daily requirements. Actual feeding rates may vary due to individual metabolism and progression rate of the aging processes and may need to be gradually adjusted.
Aging horses unable to maintain adequate body condition when being fed the recommended amount of Equine Senior® horse feed should be examined by a veterinarian for potential health issues.


Hay or Equivalent Pasture* 8.0010.0012.00
Equine Senior® Horse Feed (lbs/day)*
Light Work 6.508.2510.00
Moderate Work8.7510.7513.00

Purina® Equine Senior® horse feed is designed to replace all or a portion of the required forage in a horse's diet. If forage replacement is not needed, consider feeding Equine Senior® Active or Strategy Healthy Edge®.
* Make sure your horse is free of dental problems and can effectively chew and utilize forage. If feeding more hay, reduce the amount of Equine Senior® horse feed by 1.0 lb for every additional 1.5 lbs of hay. If feeding less hay, increase the amount of Equine Senior® horse feed by 1.0 lb for every 1.5 lb decrease in hay fed.
**  To meet nutrient requirements, do not feed less than 0.6 lbs per 100 lbs of body weight per day. If your horse gains too much weight at that minimum feeding rate, transition to Purina® Enrich Plus® Ration Balancing Feed.

A 6 lb meal of Equine Senior® Horse Feed supplies a full serving of Outlast® Supplement.



Follow label directions: feeding added selenium at levels in excess of 0.3 ppm in the total diet is prohibited.
Wash hands after feeding/handling animals. Not for human consumption. Wash feed/water containers regularly.



1. Feeding rates will vary with size, age, temperament, health status, forage quality, climate and activity level. Feed at regular times, at least twice daily. Do not feed more than 0.8 lbs/100 lbs of body weight per meal when fed without forage or more than 0.5 lbs/100 lbs of body weight per meal when fed with forage . Do not feed free-choice. Prevent rapid eating by the horse of any feedstuff.

2. Reduce and/or delay feeding a horse which is hot, excited or showing pain, has fever or diarrhea. Consult your veterinarian if any problems arise.

3. Any feed changes should be made gradually over a period of 7 to 10 days. Changes in the rate of feeding should not exceed 1.0 lb per day for each horse.

4. Provide fresh, clean water at all times. Provide your horse with access to salt. Consult with your veterinarian regularly and maintain a routine dental, parasite control and health care program for your horse.

For horses sensitive to dietary carbohydrates, please consult with a veterinarian or nutritionist for a recommended diet.

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