Maintaining the optimal weight and condition of horses, especially seniors, hard keepers, or performance animals, requires a diet rich in easily digestible fats and nutrients. Fat supplements provide the extra calories and essential fatty acids needed for muscle support, coat health, and sustained energy without increasing starch or sugar intake. Below is a summary table highlighting some top fat supplements designed to address these needs effectively.
| Product | Brand | Key Features | Link |
|---|---|---|---|
| Manna Pro Weight Accelerator for Senior Horses | Manna Pro | High fat & calories, Omega-3 from flaxseed, designed for seniors, probiotics, biotin | View on Amazon |
| Manna Pro Cool Calories 100 | Manna Pro | 99% fat concentrated, low-starch formula, supports weight & stamina, cool energy source | View on Amazon |
| Purina Amplify High-Fat Horse Supplement | Purina | Antioxidants, balanced nutrition, promotes shiny coat, easy digestion | View on Amazon |
| Farnam Weight Builder Supplement | Farnam | 50% fat content, high calorie, no added sugar, supports optimal body condition | View on Amazon |
| Pennwoods Body Builder 4000 | Pennwoods | 40% fat, promotes weight gain & muscle, improves hoof quality | View on Amazon |
Manna Pro Weight Accelerator for Senior Horses

Manna Pro Weight Accelerator is formulated specifically for senior horses requiring high fat and calorie intake to gain and maintain healthy body condition. This supplement features Omega-3 fatty acids derived from flaxseed that support skin hydration and promote a glossy coat, combating the dryness often seen in aging horses. Additionally, it includes probiotics for digestive health, biotin to strengthen hooves, and a controlled starch level that supports metabolic health. This combined formula helps aging horses maintain vitality, immunity, and joint mobility while providing balanced energy.
Manna Pro Cool Calories 100 Concentrated Fat Supplement

This supplement offers an impressive 99% fat content in a concentrated dry formula, providing more than twice the energy per serving compared to carbohydrates. Its low-starch and sugar-free design makes it ideal for horses that require additional calories without the risk of digestive upset or behavioral issues caused by sugars. Cool Calories 100 provides cool, slow-release energy helping hard keepers, senior, and performance horses gain weight or maintain stamina efficiently without excess grain.
Purina Amplify High-Fat Horse Supplement

Purina’s Amplify supplement balances high-fat nutrients with added antioxidants including Vitamin E, designed to counteract free radical damage. The supplement is fortified with protein, vitamins, and minerals providing balanced nutrition, and features a proprietary extruded particle for easy digestion and optimal calorie absorption. The unique fatty acid blend supports skin health and a shiny coat, contributing both to appearance and horse vitality.
Farnam Weight Builder Supplement for Horses

The Farnam Weight Builder features a nutrient-dense formula containing 50% fat, which offers more calories per volume than traditional grains. It is designed for horses needing to safely increase body weight without added sugars, minimizing the risk of digestive upset. This supplement helps horses maintain optimum body condition efficiently, offering easily digestible calories suitable for all horses requiring weight support and muscle maintenance.
Pennwoods Body Builder 4000 Horse Weight Gain Supplement

Pennwoods Body Builder 4000 provides a balanced formula with 40% fat and 26% protein, formulated to promote weight gain and muscle growth. It supports hoof quality and offers high energy calories necessary to maintain body condition for lactating mares, performance horses, and hard keepers. This product helps keep equine athletes in prime condition during intensive performance seasons while also assisting in muscle recovery.
Buying Guide for Fat Supplements for Horses
Selecting the right fat supplement involves several important factors to ensure it matches your horse’s individual needs, lifestyle, and health condition. Consider the following key aspects before purchase:
Fat and Calorie Content
Look for supplements with high fat percentages that provide concentrated calories without increasing grain volume excessively. Products offering 40% or more fat content deliver efficient energy and help maintain or gain weight without risking digestive upset from excess starch or sugar.
Intended Use and Horse Type
Choose formulations tailored for your horse’s needs: senior horses often benefit from added probiotics and joint support nutrients, while performance horses require sustained energy sources that won’t cause behavioral issues. Hard keepers need calorie-dense, easy-to-digest fats to improve condition effectively.
Digestibility and Starch Levels
Supplements with low or controlled starch and sugar reduce the risk of metabolic issues, laminitis, and digestive disturbances. Highly digestible fat sources such as vegetable oils or flaxseed-based Omega-3 fatty acids enhance absorption and gut health.
Additional Nutrients
Look for added antioxidants like Vitamin E to protect cells from free radical damage, biotin for hoof health, and essential vitamins/minerals that support overall equine wellbeing. Some formulas also include probiotics or prebiotics to promote digestion.
Coat and Hoof Benefits
Many fat supplements are designed to improve skin hydration, coat shine, and hoof strength. Ingredients like Omega-3 fatty acids and biotin enhance appearance and durability, especially critical for aging horses or those with poor hoof conditions.
Palatability and Form
The supplement should be appetizing and easy to administer, whether dry top dressing, pelleted, or granular. A palatable mix encourages regular intake and ensures consistent nutritional benefits.
Volume and Feeding Instructions
Evaluate the recommended feeding rates and package sizes to match your management routine and daily feed allowance. Concentrated formulas may require lower volumes, reducing storage space and feeding time.
By considering these factors, horse owners can make an informed decision to boost their horse’s health, muscle definition, and condition effectively with the best fat supplement tailored to their specific equine needs.