Choosing the right oil supplement can support weight gain, improve skin and coat health, and promote overall vitality in horses. This guide highlights five effective options, detailing how each product works, its key fatty acids, and what to consider when selecting an oil supplement for weight gain. All selections are designed to support younger and senior horses alike with balanced calories and beneficial nutrients.
| Product | Brand | Focus | Key Benefit |
|---|---|---|---|
| SmartEquine CocoSoya Oil | SmartEquine | Coat & Health | Omega fatty acids for shine and skin health |
| Manna Pro Weight Accelerator | Manna Pro | Senior Weight Gain | High calories with Omega-3 and flaxseed |
| SmartEquine CocoSun™ Oil Omega | SmartEquine | Weight & Coat | Omega 3, 6, 9 for healthy coat and weight support |
| Ultimate OEC Horse Supplement | Equinety | Coat, Joints, Weight | Omega 3, Vitamin E; fortified skin and joints |
| Camelina Oil for Horses | Smart Earth | Weight & Coat | Omega-3 rich, cold-pressed |
SmartEquine CocoSoya Oil For Coat Health

SmartEquine CocoSoya Oil combines soybean and coconut oils to support overall coat health and skin condition. The formulation delivers essential fatty acids, including omega-3, omega-6, and omega-9, to promote a lustrous coat from the inside out. This oil is designed to be a palatable, calorie-dense supplement that can aid weight gain in horses while improving coat shine. It is suitable for horses needing additional energy and improved skin condition.
Key features include essential fatty acids and a focus on coat health, making it a practical option for horses showing dull coats or minor skin concerns. When introducing any oil supplement, monitor for digestive tolerance and adjust feeding as needed to align with the horse’s caloric requirements and health goals.
Manna Pro Weight Accelerator For Senior Horses

This senior-focused weight gain formula emphasizes high fat and calorie content to support healthy body condition and vitality in older horses. It includes Omega-3 fatty acids from flaxseed to promote a glossy coat and hydrated skin, helping aging horses maintain appearance and comfort. Designed with digestibility in mind, it also features probiotics for gut support and biotin for hoof strength, alongside controlled starch levels to aid metabolic health.
Use this product to bolster energy needs during rehabilitation, weight maintenance, or periods of reduced intake. Always introduce gradually and assess changes in weight, coat condition, and overall energy before adjusting the maintenance plan.
SmartEquine CocoSun™ Oil Omega For Weight Gain

SmartEquine CocoSun Oil provides a blend of omega fatty acids designed to support coat health and weight management. The formula emphasizes omega-3 and omega-6 fatty acids to promote a shiny coat and healthy skin without adding excess bulk. The product can be a palatable source of calories, helping horses maintain energy and comfort during periods of weight gain or conditioning.
Consider this option for horses needing aesthetic improvements in coat appearance, as well as increased caloric intake. Always pair oil supplementation with balanced feeding and exercise plans to optimize weight gain while maintaining cardiovascular and joint health.
Ultimate OEC Horse Supplement

Ultimate OEC combines omega-3 from flaxseed oil with vitamin E to support coat defense, joints, and hoof health. It is formulated to be a versatile supplement for general wellness, aiding skin and coat wellness as well as cardiovascular and immune support. The product emphasizes high-quality ingredients, avoiding starches and soy, to help maintain a leaner, cleaner diet while delivering targeted nutrients for recovery and weight management.
Ideal for performance, rehabilitation, or aging horses, Ultimate OEC can contribute to improved recovery and resilience. Use as part of a holistic plan that includes appropriate calories, protein, minerals, and regular exercise to maximize benefits for weight and health.
Equine Oil Supplement 3 Natural Oils By EquiPure

EquiPure blends three vegetable oils—flaxseed, sunflower, and carrot—to deliver a comprehensive fatty acid profile along with Vitamin E and beta carotene. The formula emphasizes natural ingredients with no GMO, no soy, and no artificial additives, aiming to support coat defense, skin and hoof conditioning, digestion, and cardiovascular health. It is a strong option for horse owners seeking a plant-based oil blend with broad wellness benefits and a focus on natural nutrition.
Users should monitor intake and coat response, ensuring the oil blend complements a balanced diet and exercise. This product is suitable for horses requiring a natural, additive-free option with a focus on multi-faceted wellness rather than a single outcome.
Camelina Oil For Horses – 100% Pure For Weight Gain

100% pure camelina oil provides a balanced omega-3 to omega-6 ratio with added Vitamin E. Sourced from Canada, this cold-pressed oil is non-GMO and designed to support coat shine, hooves, and joints while aiding weight gain. Camelina is often favored for its natural anti-inflammatory properties and easy dosing, making it suitable for daily use as part of a weight-management strategy.
This oil can be a practical choice for those seeking a simple, single-ingredient supplement with a focus on anti-inflammatory benefits and coat health. Pair with a well-rounded diet and exercise routine to optimize weight gain without compromising digestive health.
Sammy’s Shiny Coat Flax Oil For Horses

Sammy’s Shiny Coat flax oil is a 100% pure flaxseed oil designed to deliver omega-3 fatty acids that support healthier skin and a shinier coat. Cold-pressed and non-GMO, this product is positioned as a veterinary-recommended supplement to support joint health, immune function, and cardiovascular performance. It is a straightforward option for boosting caloric intake with a focus on coat health and overall vitality.
As with all oil supplements, start with a gradual introduction and monitor weight changes, coat improvement, and digestion. This flax oil can be a core component of a weight gain strategy that emphasizes natural fatty acids and wellness support for horses of all ages.
Buying Guide: Key Considerations For Selecting Horse Weight Gain Oils
- Targeted goals: Identify whether the primary aim is weight gain, coat health, joint support, or a combination. Some oils emphasize fatty acids for coat shine, while others provide additional vitamins or probiotics for digestion and immunity.
- Fatty acid profile: Look for balanced omega-3 to omega-6 ratios and the presence of monounsaturated omega-9 fats. Higher omega-3 content can support skin, coat, and anti-inflammatory benefits.
- Digestibility and palatability: Choose oils that horses readily accept. Start with small amounts and increase gradually to minimize digestive upset and to monitor appetite and weight response.
- Quality and sourcing: Prefer cold-pressed, non-GMO, and additive-free options when possible. This supports consistent nutrient delivery and reduces potential fillers that could affect digestion.
- Coat and hoof health: Some products include biotin, vitamin E, or probiotics that support hooves and skin alongside coat appearance. Consider these extras if hoof integrity or skin condition is a concern.
- Senior vs. general use: Senior horses may benefit from higher-calorie formulas and additional digestive support. Tailor the choice to life stage, metabolism, and activity level.
- Administration and dosing: Review feeding guidelines and ensure the oil integrates smoothly with daily rations. Consistency matters for steady weight gain and coat condition.
- Holistic plan: Oil supplements work best when paired with balanced hay, appropriate concentrate, protein for muscle maintenance, minerals, and a suitable exercise regimen.
- Safety considerations: Monitor for signs of intolerance, such as digestive upset or changes in energy. Pause use if any adverse reactions occur and consult a veterinarian.
When selecting an oil for weight gain and coat health, consider how the product aligns with your horse’s age, activity, and dietary goals. A combination approach—an oil with a favorable fatty-acid profile plus a well-rounded nutrition plan—often yields the best results for both body condition and appearance.