Weight Gain Powder


Formula 707 Weight Gain is a highly palatable, calorie-rich supplement specifically formulated to help all types of horses gain and maintain weight. Vegetable fat provides concentrated and easily digestible calories in a form that also increases a horse’s overall energy. High-quality protein provides all the essential amino acids a horse needs to rebuild lost muscle, and fiber keeps the digestive machinery working smoothly. Calcium and phosphorus have been added to assist in the important task of skeletal maintenance and, along with zinc and copper, energy metabolism. Does it work? In informal studies, Formula 707 Weight Gain was shown to have a visible effect on underweight horses in just a few days, and a return to normal weight within weeks.

Caution: Severely emaciated horses that have been deprived of nutrition over a long period of time, such as rescue horses, should only be reintroduced to food under the care of a veterinarian. Long-term deprivation leads to changes in the digestive system, and further damage can occur if high calorie supplements are introduced too soon.






  • Feeding Instructions

  • Guaranteed Analysis

  • Ingredients

To provide added calories to the diet feed 2 scoops (4 oz.) daily. Up to 4 scoops (8 oz.) can be fed daily if horse's body condition or activity level warrants the need for additional calories. 

Guaranteed Analysis Table
Component Percentage Unit
Crude Protein (minimum) 14.0%
Crude Fat (minimum) 35.0%
Crude Fiber (maximum) 8%
MINERALS (minimum)
Calcium (Ca) min. 0.75%
Calcium (Ca) max. 1.25%
Phosphorus (P) 0.50%
VITAMINS (minimum)
Vitamin E 500 IU/lb

Processed Grain By-Products, Dried Vegetable Fat, Plant Protein Products, Roughage Products, Soybean Oil, Cane Molasses, Calcium Carbonate, Vitamin E Supplement, Monocalcium Phosphate, Artificial Flavoring.

Struggling with Helping Your Horse Gain and Keep Weight On?

Maintaining an optimal weight is a crucial aspect of your horse's overall health and well-being. Underweight horses can face a variety of issues, from reduced energy levels to compromised immune function. Formula 707 Weight Gain Crumble is specifically formulated to address these common weight gain challenges, providing a reliable solution that supports healthy weight gain from the inside out.

Formula 707 Weight Gain works internally to promote healthy weight gain and improve body condition. By delivering essential nutrients such as protein, vegetable fat, vitamin E, and fiber, this supplement ensures that your horse's weight gain is not just superficial but fundamentally sustainable and healthy.

Incorporating Formula 707 Weight Gain Crumble into your horse's daily diet can lead to noticeable improvements in body condition, enhancing muscle development, and boosting overall energy levels. This comprehensive approach means fewer weight-related issues, more vitality, and a happier, healthier horse.

-Photos courtesy of Ashley Davidson

Nutrient-Rich Ingredients for Healthy Weight Gain

Formula 707 Weight Gain Crumble is formulated with a careful selection of nutrient-rich ingredients, each playing a vital role in supporting healthy weight gain for your horse. Protein, essential for muscle development and repair, provides the building blocks necessary for a strong and well-developed physique. Vegetable fat serves as a concentrated source of energy, helping to increase calorie intake without adding bulk to the diet.


Additionally, the inclusion of vitamin E is crucial for overall health and immune function. This powerful antioxidant protects cells from oxidative stress and supports muscle function, promoting optimal performance and recovery. Lastly, the presence of fiber aids in digestion and nutrient absorption, ensuring that your horse can efficiently utilize the nutrients provided, leading to effective weight gain and improved body condition.

Four Reasons Why Formula 707 Weight Gain Stands Out

1. Won't Make Your Horse Hot

Unlike some weight gain supplements that rely heavily on carbohydrates or sugars, Formula 707 Weight Gain Crumble utilizes vegetable fat as a concentrated energy source. This means your horse can gain weight without the risk of excess energy leading to unwanted excitability or "hot" behavior.

2. Balanced Nutritional Profile

Our formula provides a balanced blend of nutrients, including protein, vitamin E, and fiber, alongside the energy-rich fat content. This ensures that your horse gains weight in a healthy, sustainable manner without compromising overall health.

3. Extremely Palatable Formula

The carefully crafted crumble texture and delicious flavor make Formula 707 Weight Gain Crumble irresistible to horses, encouraging consistent consumption and ensuring they get the nutrients they need.

4. Focus on Protein

Our formula contains high-quality protein sources essential for muscle development, ensuring that your horse can build lost muscle mass easily.

Loved by thousands of horses and their people.

Formula 707 is the trusted choice of thousands of horse owners globally. From various disciplines and all ages, our community values the special connection that horses and humans have. We prioritize the health and happiness of your horse by formulating our supplements in collaboration with experienced veterinarians. Produced in our equine-exclusive facility, our products are tested for purity and potency. With Formula 707, you're choosing proven quality for your equine partner.

Vegetable Fat

Vegetable fat provides concentrated energy, supporting weight gain without causing excitability in horses.


Protein sources in Formula 707 Weight Gain Crumble support muscle development, aiding in healthy weight gain and overall strength.

Vitamin E

Vitamin E acts as a powerful antioxidant, supporting muscle function and overall health during weight gain efforts.


Fiber aids in digestion and nutrient absorption, ensuring efficient utilization of nutrients for healthy weight gain and digestion comfort.

Certified by the National Animal Supplement Council

Spot the Quality Seal on products, indicating our commitment to rigorous NASC audits, ensuring high standards and responsible sourcing.

This Product is Show-Safe

This product contains no ingredients that are listed as prohibited, and additionally has been used by customers in major federations without issue. (If you'd like to double check, please reach out to your respective federation!)

Real Support

Want help with your order, or have general questions? Our live, Colorado-based Customer Support team is here to answer any questions you may have. Simply email us at info@formula707.com or call at 970-284-5575 (M-F, 8am-5pm MST). 

Customer Reviews

Based on 8 reviews
Patrick Swan
Maintaining a Healthy Weight for a Senior

Our 30 year old is maintaining a healthy weight with the assistance of the Weight Gain. Assists while limiting forage due to aging teeth.

Patrick Swan

Our paint mare is ~28 years old. We feed her Equine Senior, Timothy pellets, alfalfa hay, other 707 supplements, and weight gain. This seems to stabilize her weight.

Frank B.

We have an older stallion that lost alot of weight during breeding season and we started him on weight gain two weeks ago and he is looking awesome already.


Loved this product to put weight back on my 22yr old OTTB after a tough winter! We noticed changes after just 2 weeks. 4 weeks later he looked noticeably fatter. Would definitely use this again if he drops significant weight and recommend it to my friends! Also, it didn't make him hot at all which is great for a fat supplement.

Chris V.

Such a easy way to put weight on my horse. He really loves it. No mess, no waiste


My horse seems to like the flavor, but I haven't been using it long enough to tell if it's helping with her weight

Patrick Swan

The mare is 27 years young. Retired and enjoying life. Simply helps keep the ribs from showing.

Jennifer W.

Only been feeding a couple weeks but I do think it's helping and horses loves eating it

Customers Also Bought