L-Proline - Feed Ingredient

L-Proline is a non-essential amino acid naturally synthesized by the body and commonly found in plant and animal proteins. It plays a critical structural role in collagen, where it contributes to the stability and integrity of connective tissue due to its unique ring structure. In feed manufacturing, L-Proline is available as a crystalline powder produced through fermentation using microbial strains.

In equine nutrition, L-Proline may be included in specialized feed or supplement formulations to provide targeted amino acid support, particularly in diets where natural protein sources may be limited or where specific amino acid profiles are required. Although horses typically synthesize sufficient proline endogenously, certain physiological conditions such as growth, recovery from injury, or high levels of physical activity may increase the demand for this amino acid.

The following equine feeds, supplements and products contain L-Proline as an ingredient.

Feed Name	Brand	ID	Availability	Format	Protein	Fat	ADF	NDF	NSC	DE	Lysine	Calcium	Phosphorus	Magnesium	Potassium	Sodium	Chloride	Iron	Zinc	Copper	Selenium	Biotin	Vitamin E
Blitz! Pak	Peak Performance Nutrients	469317		Powdered	19.46%	--	--	--	--	0 mcal/kg	1.81%	4.57%	0.59%	1.96%	11.26%	6.02%	19.02 ppm	--	2763.82 ppm	502.51 ppm	--	--	--
Blitz! Paste Comfort Blend	Peak Performance Nutrients	469319		Paste	10%	0%	0%	0%	0%	0 mcal/kg	15.07%	4.45%	0.6%	0.82%	4.02%	2.26%	3.77 ppm	0 ppm	7537.69 ppm	1256.28 ppm	0 ppm	--	0 KIU
Blitz! Paste Original Formula	Peak Performance Nutrients	469318		Paste	13.22%	--	--	--	--	0 mcal/kg	0.91%	3.14%	0.81%	0.81%	6.05%	3.43%	--	--	1608.04 ppm	326.63 ppm	--	--	--
Complete Supplement Pellets	Ritchie Smith - Harmony	648259		Pelleted	17.8%	5.6%	21.3%	31.3%	12.7%	3.06 mcal/kg	23.4%	2.1%	1.1%	1.7%	0.9%	1%	--	755.6 ppm	2977.8 ppm	1066.7 ppm	7.3 ppm	92.2 ppm	7377.8 KIU
DigestiveHP	Poseidon Animal Health	1241085	--	--	8.8%	0.1%	16.1%	23.6%	--	1.15 mcal/kg	--	14.65%	--	6.06%	--	--	--	--	--	--	--	--	--
Farrier's Formula DS Plus Joint	Life Data Labs	469555		Pelleted	29.7%	13.86%	30%	35%	6.8%	3.29 mcal/kg	4.37%	2.3%	0.94%	--	--	0.55%	--	--	3267.97 ppm	1202.61 ppm	0 ppm	261.44 ppm	0 KIU
Grand Premium Plus	Grand Meadows	386559		Pelleted	16%	30.3%	15%	18%	17%	4.96 mcal/kg	5.57%	1.07%	0.58%	0.51%	0.73%	0.27%	0.4 ppm	1470.6 ppm	1176.5 ppm	441.18 ppm	5.88 ppm	117.6 ppm	2941.18 KIU
H-Formula	Biopteq	677908		Pelleted	31.57%	4.21%	8.8%	21.9%	--	3.13 mcal/kg	--	2.31%	1.16%	0.32%	2%	1.36%	--	484.21 ppm	510.5 ppm	105.2 ppm	--	46.3 ppm	410.5 KIU
High Fat Pellets	Ritchie Smith - Harmony	756175	--	Pelleted	13.3%	14.4%	21.3%	31.3%	12.8%	3.72 mcal/kg	5%	1.2%	0.7%	0.3%	1%	0.6%	--	400 ppm	400 ppm	133.3 ppm	0.9 ppm	11.1 ppm	888.9 KIU
High Fibre Pellets	Ritchie Smith - Harmony	648827		Pelleted	14.4%	5.6%	27.5%	37.5%	11.1%	2.91 mcal/kg	3.84%	1.22%	0.78%	0.28%	1.22%	0.56%	--	455.6 ppm	400 ppm	133.3 ppm	0.89 ppm	11.1 ppm	888.9 KIU
Hoof Power	Mustad	71904	--	--	18.2%	1.01%	12%	15%	6.8%	3.16 mcal/kg	3.86%	0.76%	0.2%	--	--	0.2%	--	--	1454.14 ppm	523.31 ppm	--	118.02 ppm	--
Hoof Secret	Cox Vet Lab	469367		Pelleted	5.1%	0.77%	--	0%	--	--	20.01%	--	--	--	--	--	--	--	4948.16 ppm	863.85 ppm	--	1259.79 ppm	--
InsulinWise	Wiser Concepts	589738		Powdered	--	--	--	--	--	0 mcal/kg	0.17%	--	--	--	--	--	--	--	--	--	--	--	--
Mega-FLX + HA	Spectra	430288		Liquid	0%	0%	0%	0%	0%	0 mcal/kg	0%	--	0%	--	0%	0%	0 ppm	0 ppm	0 ppm	406.03 ppm	60.3 ppm	0 ppm	3545.12 KIU
NutriFLEX	Kelato	763300	--	Powdered	100%	--	--	--	--	0 mcal/kg	--	--	--	--	--	--	--	--	3110.44 ppm	4179.12 ppm	--	--	--
OCD Pellets	Doc's Products	430682		Pelleted	2.02%	0.1%	30%	40%	--	0 mcal/kg	25%	--	0%	--	--	--	--	--	--	--	--	--	--
Original Performance Formula	Wilson Feeds	1210716	--	Textured	17.8%	--	20.8%	26%	--	3.11 mcal/kg	--	2.33%	1.11%	0.67%	1.11%	1.44%	--	833.3 ppm	355.6 ppm	144.4 ppm	1.33 ppm	--	230 KIU
Osteo-Max	100 X Equine	582011		Liquid	80%	--	--	--	--	0 mcal/kg	--	--	--	--	--	--	--	--	--	--	--	16.67 ppm	--
Pre-Fuel Liquid	Foran Equine	529733		Liquid	30.3%	0.53%	--	--	--	--	--	--	--	--	--	3.1%	--	--	--	--	--	--	4114 KIU
Pro V.M.	Peak Performance Nutrients	469341		Powdered	29.26%	--	--	--	--	0 mcal/kg	13.6%	--	4.02%	2.41%	6.03%	3.92%	6.13 ppm	--	--	2512.56 ppm	20.1 ppm	160.8 ppm	40201.01 KIU
Regen-X	100x Equine	663606		Liquid	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Senior Pellets	Ritchie Smith - Harmony	649989		Pelleted	15.8%	7.4%	18.75%	28.8%	21.5%	3.28 mcal/kg	4%	0.84%	0.53%	0.23%	1.05%	0.42%	--	252.6 ppm	373.7 ppm	135.8 ppm	0.84 ppm	10.5 ppm	842.1 KIU
SmartMuscle Mass	SmartPak	408518		Pelleted	52.63%	--	--	--	--	3.4 mcal/kg	13.16%	--	--	--	--	--	--	--	--	--	--	--	--
SU-PER Farrier's Supplement Pellets	Gateway Products	469428		Pelleted	19.56%	--	--	--	--	0 mcal/kg	14.42%	--	--	--	--	--	--	--	4409.25 ppm	1469.75 ppm	--	367.44 ppm	--
SU-PER Jug Paste	Gateway Products	469442		Paste	5%	--	--	0%	--	0 mcal/kg	15.94%	1.38%	--	0.78%	10.63%	4.05%	6.33 ppm	3750 ppm	1171.88 ppm	343.75 ppm	--	--	9765.63 KIU
SU-PER Muscle Builder Liquid	Gateway Products	469455		Liquid	20%	--	0%	0%	0%	--	0%	0%	0%	0%	0%	0%	0 ppm	0 ppm	0 ppm	0 ppm	0 ppm	--	--
SU-PER Muscle Builder Powder	Gateway Products	469456		--	20%	--	0%	0%	0%	--	0%	0%	0%	0%	0%	0%	0 ppm	0 ppm	0 ppm	0 ppm	0 ppm	--	--
SU-PER Sound Liquid	Gateway Products	469472		Liquid	10%	--	0%	0%	0%	--	2.78%	0%	0%	0.55%	--	0%	--	0 ppm	1102.31 ppm	330.69 ppm	0 ppm	--	--
SU-PER Sound Plus Powder	Gateway Products	469473		--	10%	--	0%	0%	0%	--	5.56%	0%	0%	1.1%	--	0%	--	0 ppm	6613.87 ppm	661.39 ppm	22.05 ppm	220.46 ppm	33069.37 KIU
SU-PER Sound Powder	Gateway Products	469477		Powdered	10%	--	0%	0%	0%	--	4.47%	0%	0%	8.86%	--	0%	--	0 ppm	1772.56 ppm	531.77 ppm	0 ppm	--	--
Suspensory Saver	Figuerola Laboratories	1191403	--	--	--	--	--	--	--	0 mcal/kg	--	--	--	--	--	--	--	--	--	--	--	--	--
Sweet Feed	Ritchie Smith - Harmony	582007		Textured	13.33%	4.4%	13.75%	23.75%	34.45%	3.26 mcal/kg	4.17%	1.11%	0.55%	0.24%	0.88%	0.55%	0.58 ppm	172.22 ppm	405.56 ppm	133.33 ppm	0.89 ppm	11.11 ppm	888.89 KIU
Tie Free TMC Paste	Peak Performance Nutrients	469345		Paste	3.1%	--	--	0%	--	--	16.53%	2.57%	0.02%	0.67%	9.28%	0.8%	1.26 ppm	--	--	--	--	--	5824.94 KIU
Wilson's Cool Formula	Wilson Feeds	1169649		Textured, Granular, Crumble, Multi-particle Feed	21.05%	6.32%	20.05%	30.05%	--	2.95 mcal/kg	--	2.3%	1.26%	0.6%	1.3%	1.1%	--	843.2 ppm	336.8 ppm	131.6 ppm	1.26 ppm	10.5 ppm	221.1 KIU

Feeds, Supplements & Products

Blitz! Pak (Peak Performance Nutrients)

Electrolyte

Herb

Mineral Balance

Vitamins

Blitz! Pak by Peak Performance Nutrients is a vitamin and mineral supplement which is intended to be provided before a horse event. It contains electrolytes, amino acids, and a blend of herbs.

Blitz! Paste Comfort Blend (Peak Performance Nutrients)

Exercise

Herb

Recovery

Stamina

Blitz! Paste Comfort Blend by Peak Performance Nutrients is a vitamin and mineral supplement intended to be provided before a horse event. It contains electrolytes and amino acids intended to aid performance and recovery.

Feed Additives Commercial Feeds & Supplements Mineral Supplements Vitamin Supplements

Blitz! Paste Original Formula (Peak Performance Nutrients)

Electrolyte

Performance

Recovery

Stamina

Blitz! Paste Original Formula is a vitamin and mineral supplement meant to be provided before a horse event. It contains electrolytes, amino acids, and a blend of herbs intended to aid performance during the event and recovery.

Commercial Feeds & Supplements Supplement Mineral Supplements Vitamin Supplements Feed Additives

Complete Supplement Pellets (Ritchie Smith – Harmony)

Health

Nutrients

Nutrition

Ration Balancer

Complete Supplement Pellets from Ritchie Smith's Harmony is a vitamin, mineral, hoof, and gut supplement. Complete Supplement Pellets are intended for horses on forage-based diets, or horses with metabolic issues.

Ration Balancer Supplement

DigestiveHP (Poseidon Animal Health)

Digestion

Gut Health

Hindgut

Immunity

DigestiveHP by Poseidon Animal Health is a gut health supplement intended to support digestion, nutrient absorption and overall immune health in horses requiring additional gut support.

Commercial Feeds & Supplements Supplement Gut Supplement

Farrier’s Formula DS Plus Joint (Life Data Labs)

Hoof Health

Joints

Mineral Balance

Vitamins

Farrier's Formula DS Plus Joint by Life Data Labs is a pelleted supplement that intends to support hoof growth and joint support. It contains 20mg of biotin per serving and a high level of glucosamine.

Feed Additives Commercial Feeds & Supplements Hoof Supplement

Grand Premium Plus (Grand Meadows)

Complete Feed

Hoof Health

Joints

Nutrition

Grand Premium Plus is a complete feed for horses that provides vitamins, minerals, and amino acids, as well as ingredients for joint support and digestion. Ideal for horses and ponies of all ages and work levels.

Commercial Feeds & Supplements Complete Feeds Skin & Coat Supplement Gut Supplement Hoof Supplement Immune Supplement Joint Supplement Minerals Vitamins Oats

H-Formula (Biopteq)

Health

Immunity

Joints

Muscle

H-Formula from Biopteq is a pelleted supplement intended for horses who require additional protein in their diet. This supplement is intended to support the maintenance of muscles and tendons.

Joint Supplement

High Fat Pellets (Ritchie Smith – Harmony)

Complete Feed

Energy

Low NSC Feeds

Metabolism

High Fat Pellets from Ritchie Smith's Harmony is a complete feed that has a low NSC value and is ideal for hard keepers, performance horses, stallions, horses who need slow release energy or horses with metabolic issues. It can help with immunity, hooves and skin, and gut health.

Fat Feeds

High Fibre Pellets (Ritchie Smith – Harmony)

Fiber

Health

Low NSC Feeds

Nutrition

High Fibre Pellets from Ritchie Smith's Harmony is a low NSC feed intended for easy keepers or horses who have metabolic issues. This feed is 13% crude protein and 5% fat.

Fiber Complete Feeds

Hoof Maker (Hypona)

Hoof Health

Mineral Balance

Nutrients

Vitamins

Hoof Maker by Hypona is a vitamin and mineral supplement intended to support overall hoof health in all horse types.

Commercial Feeds & Supplements Supplement Hoof Supplement

Hoof Power (Mustad)

Amino Acid

Hoof Health

Mineral Balance

Vitamins

Hoof Power is a pelleted hoof supplement containing biotin, zinc, copper and additional amino acids including methionine. These nutrients are important for hoof growth and quality.

Feed Additives Commercial Feeds & Supplements Supplement Hoof Supplement

Hoof Secret (Cox Vet Lab)

Amino Acid

Hoof Health

Mineral Balance

Vitamins

Hoof Secret from Cox Vet lab is an equine supplement intended to support hoof health. Hoof Secret is a palatable alfalfa - based pellet.

Feed Additives Commercial Feeds & Supplements Legume Hay Hoof Supplement

InsulinWise (Wiser Concepts)

Health

Immunity

Metabolic Syndrome

Recovery

InsulinWise from Wiser Concepts is an equine supplement only available through a licensed veterinarian. InsulinWise is intended to maintain healthy insulin levels and normal metabolic function.

Commercial Feeds & Supplements Supplement Hormone Supplement

Mega-FLX + HA (Spectra)

Exercise

Joints

Muscle

Recovery

Mega-FLX + HA is an equine supplement intended for targeting joint and muscle health. This liquid formulation contains vitamins, and minerals as well as MSM and hyaluronic acid.

Commercial Feeds & Supplements Supplement Joint Supplement

NutriFLEX (Kelato)

Bone Health

Health

Joints

Performance

NutriFLEX Kelato is a joint supplement that is meant to support tendons, ligaments, bones, and cartilage. It contains amino acids, minerals, and glucosamine hydrochloride which assists in overall leg health and strength.

Amino Acid Supplements Minerals Joint Supplement

OCD Pellets (Doc’s Products)

Bone Health

Growth

Health

Joints

OCD Pellets by Doc's Products is a bone and joint supplement intended for horses. It supplies 900 mg of silicon and 50 mg of hyaluronic acid in each 28 g serving.

Feed Additives Amino Acid Supplements Minerals Vitamins Joint Supplement

Original Performance Formula (Wilson Feeds)

Health

Nutrition

Performance

Ration Balancer

Original Performance Formula by Wilson Feeds is a soy-free supplement intended to fill nutritional gaps of horses on a forage-based diet.

Supplement Ration Balancer Commercial Feeds & Supplements

Osteo-Max (100x Equine)

Competition Horses

Health

Immunity

Joints

Osteo-Max from 100x Equine is a liquid joint supplement for horses. Osteo-Max is intended to support bone remodeling and increase bone density.

Commercial Feeds & Supplements Bone Supplement Joint Supplement

Pre-Fuel Liquid (Foran Equine)

Competition Horses

Energy

Exercise

Nutrients

Pre-Fuel Liquid from Foran Equine is intended for horses and ponies in heavy work or competition. This supplement is meant to support nutritional and energy requirements.

Feed Additives Commercial Feeds & Supplements Supplement

Pro V.M. (Peak Performance Nutrients)

Joints

Muscle

Performance

Stamina

Pro V.M. by Peak Performance Nutrients is a multi-use vitamin, mineral and amino acid supplement designed with race horses in mind. It intends to support the extreme demands on the horse’s joints, immune system and muscular system.

Commercial Feeds & Supplements Feed Additives Minerals Vitamins

Regen-X (100 X Equine)

Amino Acid

Competition Horses

Performance

Recovery

Regen-X from 100 X Equine is an amino acid supplement intended for performance horses. Regen-X is intended to build muscle tone and support recovery after exercise.

Muscle Supplement Amino Acid Supplements

Senior Pellets (Ritchie Smith – Harmony)

Health

Nutrition

Senior

Weight Issues

Senior Pellets from Ritchie Smith's Harmony is a pelleted feed intended for senior horses. This feed is also intended for horses who are hard keepers. Senior Pellets contains 15% crude protein and crude fibre.

Complete Feeds

SmartMuscle Mass (SmartPak)

Amino Acid

Competition Horses

Muscle

Performance

SmartMuscle® Mass Pellets is an amino acid supplement for horses, containing branched chain amino acids (BCAAs) and whey protein. It is formulated to support muscle development.

Feed Additives Commercial Feeds & Supplements Supplement Muscle Supplement Amino Acid Supplements

SU-PER Farrier’s Supplement Pellets (Gateway Products)

Amino Acid

Hoof Health

Probiotic

Vitamins

SU-PER Farrier's Supplement Pellets by Gateway Products is a hoof supplement with 25mg of Biotin per serving. This supplement supports healthy hoof growth and structure.

Commercial Feeds & Supplements Supplement Hoof Supplement

SU-PER Jug Paste (Gateway Products)

Amino Acid

Energy

Performance

Vitamins

SU-PER Jug Paste is an energy supplement meant to provide stamina, performance, and energy. This supplement offers vitamins and minerals, electrolytes, and amino acids to ensure proper nutrient levels before a race or restore balance.

Commercial Feeds & Supplements Supplement Energy Sources

SU-PER Muscle Builder Liquid (Gateway Products)

Muscle

Performance

Recovery

Topline

SU-PER Muscle Builder Liquid by Gateway Products is a supplement meant to support proper body condition and healthy muscle tissue. This supplement provides the key amino acids for muscle building and would best support performance horses.

Muscle Supplement Commercial Feeds & Supplements Supplement Amino Acid Supplements

SU-PER Muscle Builder Powder (Gateway Products)

Amino Acid

Exercise

Muscle

Topline

SU-PER Muscle Builder Powder by Gateway Products is a supplement meant to support proper body condition and healthy muscle tissue. This supplement provides the key amino acids for muscle building and would best support performance horses.

Muscle Supplement Commercial Feeds & Supplements Amino Acid Supplements Supplement

SU-PER Sound Liquid (Gateway Products)

Exercise

Joints

Nutrients

Recovery

SU-PER Sound Liquid by Gateway Products is a supplement to support joint, ligament, and tendon health. This supplement contains glucosamine, MSM, and bromelain to help maintain healthy joint function.

Commercial Feeds & Supplements Joint Supplement Minerals

SU-PER Sound Plus Powder (Gateway Products)

Flavor

Joints

Nutrients

Vitamins

SU-PER Sound Plus Powder by Gateway Products is a supplement to support and maintain healthy joint function, and it aids the structural integrity of connective tissues. This supplement contains elevated levels of MSM, hyaluronic acid, and chondroitin sulphate.

Commercial Feeds & Supplements Joint Supplement

SU-PER Sound Powder (Gateway Products)

Health

Joints

Nutrients

Recovery

SU-PER Sound Powder by Gateway Products is a supplement to support joint, ligament, and tendon health. This supplement contains glucosamine, MSM, and bromelain to help maintain healthy joint function.

Commercial Feeds & Supplements Joint Supplement

Suspensory Saver (Figuerola Laboratories)

Antioxidant

Herb

Joints

Recovery

Suspensory Saver by Figuerola Laboratories is a natural supplement designed to support tendon and ligament health. Formulated with collagen, MSM, and vitamin C, it helps promote cellular integrity and supports recovery.

Sweet Feed (Ritchie Smith – Harmony)

Competition Horses

Digestion

Fiber

Nutrients

Sweet Feed from Ritchie Smith's Harmony is a textured horse feed intended for horses in moderate to heavy work. Sweet Feed contains 12% crude protein and 4% fat.

Energy Sources Sweet Feed

Tie Free TMC Paste (Peak Performance Nutrients)

Exercise

Muscle

Recovery

Stress

Tie Free TMC Paste is a sodium bicarbonate free electrolyte supplement that supports replenishment of glycogen stores, muscle recovery, and muscles prone to tying up. It contains potassium chloride, potassium carbonate, and magnesium sulphate.

Feed Additives Commercial Feeds & Supplements Electrolyte Minerals Vitamins

Wilson’s Cool Formula (Wilson Feeds)

Mineral Balance

Nutrients

Protein

Yeast

Wilson's Cool Formula by Wilson Feeds is a granular, textured horse feed formulated to balance forage-based diets. It is soy-free and contains peas and alfalfa as protein sources.

Commercial Feeds & Supplements Feeds Supplement Minerals