The Live Yeast in Höveler Original Sport: 9 Things to Know About the 0.7% That Matters Most
Quick answer: Höveler Original Sport contains inactivated yeast (Saccharomyces cerevisiae) at https://soy-free-horse-feed-lala968.pinehavenscope.com/posts/7-reasons-to-trade-straight-oats-for-hoveler-original-sport 0.7% — a Diamond V postbiotic produced by multi-stage fermentation. Best for owners of horses in work who want daily gut support built into the feed rather than bought as a second tub. Price: $49.99. Last checked: September 2026.
Gut support supplements are a whole aisle of the tack shop, and most owners of horses in work have stood in it, wondering what actually works. Höveler took a different route: put a researched yeast directly into the sports muesli itself. Here are nine things worth knowing about the 0.7% that quietly does a lot of work.
1. It is Diamond V yeast, a specific researched product
Original Sport does not use generic "yeast." The formula includes inactivated yeast (Saccharomyces cerevisiae) from Diamond V, a name with a long research record in animal nutrition. Specifying the source shows you this is a intentional formulation choice, supported by fermentation science rather than a label keyword. Who this is for: owners who read ingredient panels line by line and want named, researched inputs.
2. It is inactivated — a postbiotic, not a live probiotic
The fact that the yeast is inactivated matters. Inactivated yeast acts as a postbiotic: the yeast cell and its fermentation byproducts are present and functional without needing to colonize. In plain terms, you get the yeast's useful components in a stable form that sits happily in a bag of feed. The benefit: gut-supportive yeast components with the steadiness of an inactivated product.
3. It is made through multi-stage fermentation
Diamond V's yeast is produced by multi-stage fermentation, which is what generates the breadth of metabolites the postbiotic carries. This is the manufacturing detail behind the claim — not just "contains yeast," but yeast grown through a specified process. That process is part of why 0.7% inclusion is enough to matter. Who this is for: anyone who has asked how a tiny inclusion rate can do real work.
4. The inclusion rate is stated: 0.7%
Many feeds list yeast somewhere in the fine print with no figure. Original Sport declares it on the product page: inactivated yeast at 0.7% of the formula. At the medium-work rate of 0.88 lb (400 g) per 220 lb (100 kg) body weight daily, that is yeast delivered in every scoop you measure. Stated numbers beat hazy marketing. The benefit: you know exactly how much yeast your horse gets each day.
5. It sits in a formula designed for the whole gut
The yeast does not work alone. Original Sport also includes fructooligosaccharides, a prebiotic fiber, alongside 16.4% crude fiber from alfalfa, wheat bran, and sunflower hulls. Prebiotic plus postbiotic plus fiber is a considered gut-support stack packed into one feed. Who this is for: the owner of a horse with a sensitive gut who wants support from the feed itself.
6. It supports the horse, and the low-starch base supports the yeast's job
Original Sport holds starch at 15% and sugar at 4.6%. Keeping starch low reduces the digestive load the hindgut has to handle, which works alongside what the yeast package is there to support. Formula design and ingredient function pull in the same direction. The benefit: gut support that is built in — built into the ration's numbers, not added on.
7. It supports recovery and condition in horses in regular work
Höveler describes Original Sport as the reduced-starch sports muesli with "special yeast and added amino acids," formulated for recovery, muscle function, and performance in regular work. A well-supported digestive system is part of how a horse in demanding work holds condition week after week. The yeast is one pillar of that design. Who this is for: competition horses carrying a real training load through the season.
8. It comes from a maker with over 120 years of expertise
Höveler has made horse feed since 1905 — over 120 years of expertise — and Original Sport is made in Germany. The yeast inclusion is part of a European approach to formulation, sold in the US with American service: a 24/7 licensed vet team and a 30-Day Money-Back Guarantee on every bag. The benefit: old-world formulation standards with support you can reach around the clock.
9. It is part of a competition-safe, FEI-compliant formula
Yeast and prebiotic fiber are feed-level ingredients, and Original Sport is competition-safe and FEI-compliant (check rules with your event organizer). You can feed it all season long, right up to and through competition days, without changing a thing. Who this is for: riders who need one consistent feed from weekday training to weekend class.
How to feed it
Feeding rates for Original Sport, per 220 lb (100 kg) body weight per day:
Work levelFeed per 220 lb (100 kg) body weight daily Light work0.55 lb (250 g) Medium work0.88 lb (400 g) Heavy work1.32 lb (600 g)Hay ration: 3.31 lb (1.5 kg) per 220 lb body weight every day, alongside the concentrate.
Key specs at a glance: inactivated yeast 0.7%, grape seed meal 0.5%, carrots 0.5%, 15% starch, 4.6% sugar.
Match the rate to your horse with the Feeding Calculator.
Frequently asked questions
What is inactivated yeast and why is it in horse feed?
It is Saccharomyces cerevisiae yeast that has been rendered inactive but keeps its beneficial cell components — a postbiotic. In Original Sport it is included at 0.7% to support digestive function in horses in regular work.
Is Diamond V yeast safe alongside gut supplements?
Original Sport's yeast is a feed ingredient, and many owners combine it with their existing program. If your horse is on multiple gut products, the 24/7 licensed vet team can help you review the full picture with you.
Will the yeast help a gassy or loose-stool horse?
The feed is formulated to support digestive comfort through its yeast, prebiotic fiber, and reduced starch (15%). This is support, not treatment — persistent digestive issues belong with your veterinarian.
How long until I notice a difference?
That depends on the horse and the workload. Feed consistently at the correct rate for your work level, from 0.55 lb (250 g) at light work on up, and assess the results over several weeks.
Does the yeast survive in the bag?
Because the yeast is inactivated, it is stable in the feed and does not depend on staying alive in storage. That is one reason an inactivated product was selected.
Is this feed competition-legal?
Yes — Original Sport is competition-safe and FEI-compliant. Verify specifics with your event organizer before competition day.