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Evaluation of Berry and Citrus Herb Formula in Equine Metabolic Patients


Metabolic syndrome is a term used referring to a group of risk factors that contribute to an increased risk of heart disease, diabetes and stroke in people. In horses, metabolic syndrome is closely connected with poor sugar metabolism, insulin dysfunction, circulatory disease and laminitis.  In both groups, the risk factor that is most prominent is obestity or excessive body condition, which then tends to increase the risk for development of other factors and further contribute to patient health deterioration.

Equine Metabolic Syndrome Formula
Equine Metabolic Syndrome Formula

In humans, the 5 major risk factors to the development of metabolic syndrome include; a large waistline, high triglycerides, low LDL cholesterol, high blood pressure and high fasting blood sugar.  In horses, the main contributing factor is an overweight body condition and often insulin dysfunction. Despite pharmaceutical interventions in both people and horses, there is still a lack of control and management of the syndrome.  The intake of proper nutrients, combined with a healthy diet and lifestyle have been shown to be the best preventative and potential management measures.

Modern research has demonstrated that all metabolic disease are associated with a low level (chronic) inflammation, oxidative stress and endoplasmic reticulum stress. It has also been shown that more often than not, these stresses interact with one another and intensify over the course of disease development. Considering this, therapeutic options that can reduce these stresses are emerging as targets for intervention and management of metabolic diseases.1

Many citrus fruits, berries, mushrooms and other herbs have demonstrated the ability in research to reduce the clinical manifestations associated with metabolic syndrome by modifying chronic inflammation and oxidative stress damage. In most cases, these herbs are capable of reducing inflammation by downregulating NF-kB, a transcription factor involved in the production of inflammatory proteins.  They can also assist with reducing oxidative stress through their innate antioxidant capabilties and through upregulation of NRF2, which assists in regulating antioxidant response at a cellular level.

Purpose of the Study:

In this study, we plan to evaluate the clinical response of a propietary herbal formula, consisting of a 4:1 concentrated extact of Blueberry, Bilberry and Noni Fruit, with apple peel, Poria cocos, Astragalus and Amla extracts, (Cur-OST® EQ Meta-Support) in horses with metabolic syndrome.  The overall goal was to investigate palatability, impact on weight and body condition, and improvement in foot soreness score over a 30 day period of time.

Patient Selection:

Thirteen (13) equine patients were selected based on overweight body condition score and prior diagnosis of metabolic syndrome. Ten patients demonstrated foot soreness, attributed to laminitis, while 3 did not have any evident problems aside from an overweight body condition.  Patient diets, exercise levels and supplement or medication regimens were held constant, not being altered during the research trial. Insulin levels were not followed in the research trial.


Patient Initial Weight Post Weight Total Weight Loss Foot Soreness Improved
1 1898 lbs 1940 lbs None No change
2 961 lbs. 980 lbs. None No change
3 1194 lbs. 1130 lbs. 60lbs. No change
4 1255 lbs. 1190 lbs. 65 lbs. Improved
5 1500 lbs. 1470 lbs. 30 lbs. No foot soreness
6 1370 lbs. 1320 lbs. 50 lbs. No change
7 1286 lbs. 1246 lbs. 40 lbs. Improved
8 932 lbs. 900 lbs. 32 lbs. Improved
9 1158 lbs. 1150 lbs. 8 lbs. Improved
10 1220 lbs 1168 lbs 52 lbs. No foot soreness
11 1890 lbs 1852 lbs. 38 lbs. Improved
12 1270 lbs 1235 lbs. 35 lbs. Improved
13 1176 lbs. 1146 lbs. 30 lbs. Improved
















A healthy diet and lifestyle can greatly impact the development and progression of metabolic syndrome related health diseases. In most instances, proper foods, can not only provide nutrients to support cellular support, but also impart a direct antioxidant capability to reduces oxidative cellular damage and impact chronic inflammation.  Considering this, a healthy diet, utilzing proven food sources could prove valuable in management of metabolic syndrome in many aspects, including assisting in maintaining a healthier body weight, which in and of itself, can positively impact inflammation and health.

Blueberries, bilberries, noni and other berry fruits have been demonstrated to impact health positively through many properties. They have been shown to protect against oxidative stress due to high level of antioxidant potential and flavanoids, improve cardiovascular health, reduce blood pressure, reduce LDL cholesterol, reduce adipose (fat) tissue inflammation, protect against insulin resistance, improve insulin sensitivity, reduce pancreatic cell apoptosis, promote proliferation of β-cells, improve glucose metabolism and have also demonstrated anti-cancer properties via reduction of inflammation via NF-kB and JNK pathways.2,3,4,5,6,7

Apple peel is another of great interest, rich in antioxidants, polyphenols and quercetin.  In studies, apple peel has demonstrated anti-inflammatory properties, inhibiting H. pylori associated with stomach ulcers, anti-proliferative properties against cancer cells, inhibits tumor promoted carcinogenesis, impact markers of metabolic syndrome including glucose, LDL cholesterol, and improve insulin sensivity.8,9,10,11,12

Poria cocos is a mushroom with tremendous medicinal capabilities.  It has been demonstrated to significantly improve hyperlipidemia, improve glucose metabolism, reduce inflammation, protect the brain and other organs from beta-amyloid deposition and growth inhibitory effects against various forms of cancer.13,14,15,16,17

Astragalus membranaceus is an herb used in traditional chinese medicine for centuries and has demonstrated remarkable abilities in research.  Astragalus has been shown to decrease fasting glucose, hemoglobin A1-C, insulin levels, improves memory impairment, anti-inflammatory benefits, reduces toxicity of immunosuppressants and chemotherapy, immunomodulatory, antioxidant, anti-cancer properties, reduces iron-toxicity and is nephroprotective protecting kidney function.

In this research trial, 11 out of 13 horses demonstrated evident weight loss, with an average of 33.8 lbs lost over a 30 day period of time with once daily administration of the research proprietary blend.  Two of the patients demonstrated weight gain, which is hard to determine cause, which may be dietary related.  In regards to foot soreness, likely attributed to chronic laminar inflammation, 7 out of 13 demonstrated improvements in lameness perception, 2 had no soreness at the start of the trial and 4 horses did not demonstrate clinical improvement in this area.

Overall, the supplement was well tolerated and accepted by all patients.


Metabolic syndrome in horses is relatively similar to the same condition in humans.  An overweight body condition is often a hallmark sign of metabolic syndrome and itself contributes to an elevated inflammatory status in that patient, potentially giving rise to further health problems.  Diet can play a major role potentially in helping to manage clinical problems and the findings of our study indicate that the supplementation of berries, fruits and even medicinal mushrooms may prove of benefit in helping to promote a healthy weight, which then may improve not only quality of life for the patient, but improve insulin sensitivity and inflammatory markers.



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