Höveler Pur.Muskel: 5 Protein Sources That Build Its 20% Raw Protein
Quick answer: Höveler Pur.Muskel gets its 20% raw protein from four plant sources — soy flakes, sweet lupine flakes, pea flakes, and sunflower extraction meal — with 160 g/kg of it digestible crude protein. Supplementary feed, FEI-compliant, $52.99 for a 44 lb bag. Last checked: September 2026.
Protein is easy to claim and difficult to formulate. The number on the bag front matters no more than the ingredients carrying it — and whether the horse can actually absorb it. Pur.Muskel's 20% raw protein is carried by four named plant sources, and the digestibility figure is stated right beside it. Here are the 5 facts about where the protein originates.
1. Soy flakes — the protein anchor of the list
Soy flakes sit in the number two spot in the ingredient list, right after meadow lyegrass. Soy is one of the most complete plant proteins open to feed formulators, and here it anchors a ration that reaches 20% raw protein. One thing to be clear about: soy is an ingredient in this feed. It is alfalfa-free, but soy is an ingredient — if your horse has a soy sensitivity, this is the feed to check with your vet first.
Who this is for: owners who want a serious, complete-plant-protein anchor in the muscle ration — and who need to know from the start that soy https://horse-feeding-plan656.novacrestiq.com/posts/9-reasons-hoveler-pur.muskel-fits-a-warmblood-s-feeding-program is in it.
2. Sweet lupine flakes — the European muesli signature
Sweet lupine flakes are a traditional German formulation choice, and they pull double duty: contributing to the protein total while adding to the feed's 18.7% crude fiber structure. Alongside meadow lyegrass and the rest of the list, they are one reason Pur.Muskel reads like a muesli rather than a pellet.
The benefit: protein delivered as flakes you can recognize — European craft, made in Germany since 1905.
3. Pea flakes — protein plus fiber in the same flake
Pea flakes round out the legume trio. Like the lupine flakes, they contribute to the two together — the 20% raw protein and the fibrous structure of the mix, with the feed's starch held at just 5.8%. Legume flakes are how a low-starch muscle feed obtains its protein: from plant sources, not from grain.
Who this is for: owners building a ration for metabolically sensitive breeds who want protein that arrives without starch baggage.
4. Sunflower extraction meal — the oilseed protein
The fourth source is sunflower extraction meal, appearing in the list alongside sunflower seed. It extends the protein program with an oilseed source and keeps the ingredient base botanically varied: two legumes, one oilseed meal, and soy flakes between them.
The benefit: four distinct plant protein sources rather than one single filler doing all the work.
5. What the sources add up to: 160 g/kg digestible crude protein and stated amino acids
Together these ingredients deliver 20% raw protein, of which 160 g/kg is digestible crude protein — the measure of what your horse actually absorbs. The essential amino acids are stated too: lysine 0.85%, threonine 0.6%, methionine 0.25%, and methionine+cysteine at 0.5%. And because the feed adds no vitamins or minerals, this protein package fits into a custom ration without friction.
Who this is for: owners who want a supplementary muscle feed with a clear, fully declared protein program — at $52.99 a 44 lb bag, backed by a 30-Day Money-Back Guarantee. Every figure is on the Höveler Pur.Muskel 44 lb bag page.
How to feed it
Pur.Muskel is a supplementary feed — layered onto a complete ration, never fed alone. Rates are per 220 lb (100 kg) body weight per day:
Work levelDaily rate per 220 lb (100 kg) body weight Light work0.07–0.11 lb (30–50 g) Medium work0.11–0.18 lb (50–80 g) Heavy work0.18–0.22 lb (80–100 g)For example, a 1,000 lb horse in medium work receives 50–80 g daily. Measure the ration rather than relying on a scoop.
Key specs at a glance: 20% raw protein, 160 g/kg digestible crude protein, lysine 0.85%, 5.8% starch, 4.1% sugar, 44 lb bag, $52.99.
Get your horse's exact daily amount with the feeding calculator.
What an owner said
"Noticeable difference in stamina" — Jessica, March 14, 2019 (Quality 4, Value 5, Price 4 out of 5). The product rates 4.55 from 2 reviews overall.
Frequently asked questions
Where does the protein in Höveler Pur.Muskel come from?
Four plant sources: soy flakes, sweet lupine flakes, pea flakes, and sunflower extraction meal. Together they deliver 20% raw protein with 160 g/kg digestible crude protein.
Does it contain soy?
Yes. Soy flakes are in the ingredient list. The feed is alfalfa-free, but soy is an ingredient — check with your vet if your horse has a soy sensitivity.
How much of the protein can the horse actually use?
Digestible crude protein is stated at 160 g/kg. That digestibility figure is what nutritionists plan rations around, since it reflects absorption rather than the label total.
Is the protein source low in starch?
Yes. The protein comes from legume flakes and oilseed meal while starch sits at 5.8% and sugar at 4.1% — a profile formulated especially for metabolically sensitive breeds.
Can it be my horse's only feed?
No. It is a supplementary feed added to a complete ration, with forage always alongside and no added vitamins or minerals.