Best Grain-Free Food for German Shepherds

Grain-free kibble is one of those topics where strong opinions fly in both directions. Some owners swear by it. Others avoid it entirely after reading the FDA headlines. If you’re sorting through the noise for your Shepherd, the right call depends on your specific dog. For a broader look at all food types, our feeding guide covers kibble, wet, raw, and fresh options.

This guide walks through why owners consider grain-free in the first place, what the FDA investigation actually found (and didn’t find), when going grain-free genuinely makes sense, and five formulas that hold up nutritionally for a large, active breed.

Start Here: Do You Actually Need Grain-Free?

Most Shepherds do well on grain-inclusive food. If you’ve landed here because your dog has a confirmed grain issue and you need to pick a formula, skip to the comparison table below. If you’re still deciding whether grain-free is the right move, read on.

Why Owners Consider Grain-Free

The grain-free trend started partly from marketing and partly from a reasonable idea: dogs evolved from wolves, wolves didn’t eat wheat, so maybe dogs don’t need grain either. That logic oversimplifies canine digestion (domestic dogs have adapted to digest starches over thousands of years), but the appeal is understandable.

More practically, owners tend to explore grain-free for three reasons:

• Their dog has digestive issues and they’re looking for a dietary change
• A friend, breeder, or internet forum recommended it
• They suspect a grain allergy or sensitivity

The first two reasons don’t necessarily point toward grain-free as the answer. The third one sometimes does, but confirmed grain allergies in dogs are less common than most people assume. Beef, dairy, and chicken trigger far more allergic reactions than any grain, according to veterinary allergy data. Our allergy food guide covers this in more depth.

The FDA Investigation: What We Actually Know

Starting in 2018, the FDA began investigating reports of dilated cardiomyopathy (DCM) in dog breeds not typically predisposed to the condition. Many of the affected dogs had been eating grain-free diets heavy in peas, lentils, and potatoes as primary ingredients.

The investigation established a pattern of reports linking certain grain-free formulations to DCM cases. The FDA published updates and named brands that appeared most frequently in those reports.

What it did not establish: a definitive cause-and-effect relationship.

“We understand the concern about reports of canine heart disease, known as dilated cardiomyopathy (DCM), in dogs eating certain pet foods containing peas, lentils, other legume seeds, or potatoes as main ingredients. The cases are complex and involve multiple factors.”

— FDA Center for Veterinary Medicine (2019)

That distinction matters. The reports are real, and they’re worth taking seriously. But treating every grain-free kibble as dangerous overstates what the evidence supports — the concern appears to center on specific formulations where legumes and potatoes dominate the recipe, not grain-free diets as a category.

What this means in practice:

• Don’t dismiss the concern. The reports involve real dogs and real heart disease.
• Don’t panic either. Correlation and causation are different things.
• Look at the full ingredient list. A grain-free food where animal protein dominates the first several slots is a different product from one built on peas and lentils.
• Talk to your vet before switching. This decision benefits from a professional who knows your dog’s health history.

“At this time, we are not advising dietary changes based solely on the current reports. We are recommending that owners work with their veterinarian to determine the best diet for their pet.”

— Lisa Freeman, DVM, PhD, DACVIM (Nutrition), Tufts University (2019)

For more context, Tufts Petfoodology and the AKC’s overview of grain-free diets both offer balanced perspectives.

When Grain-Free Actually Makes Sense

Most dogs in this breed do well on grain-inclusive food. Brown rice, oatmeal, and barley are digestible, nutritious carbohydrate sources for dogs. Going grain-free isn’t automatically better.

There are legitimate scenarios, though:

Confirmed grain allergy. If an elimination diet conducted with your vet identifies a specific grain as a trigger, removing it is the obvious step. Worth repeating: grain allergies are uncommon compared to protein allergies. An elimination diet is the only reliable way to diagnose them. Blood and saliva panels marketed for food allergies have poor accuracy.

Digestive intolerance to specific grains. Some dogs show symptoms with certain grains but handle others fine. This is different from a true allergy and tends to be dose-dependent. You might not need to go fully grain-free. Switching from wheat-based to rice-based food could be enough, or a limited-ingredient formula might solve the problem without eliminating grains entirely.

Veterinary recommendation. Your vet may suggest grain-free for a specific health reason unrelated to allergies.

If none of these apply, there’s no strong nutritional reason to choose grain-free over grain-inclusive.

What to Look for in a Grain-Free Formula

Not all grain-free kibbles are built the same. For a large, active breed, prioritize:

• Named animal protein as the first ingredient. Chicken, beef, fish, lamb. Not “meat meal” or “animal by-product.”
• Protein content of 24-30%. These dogs are active and need adequate protein for muscle maintenance. AAFCO minimum for adults is 18%, but most owners of the breed aim higher.
• Fat content of 12-18%. Supports coat health, joint function, and energy.
• Legumes not dominating the recipe. Given the DCM discussion, look for formulas where peas, lentils, and chickpeas aren’t the second, third, and fourth ingredients.
• Omega fatty acids. The breed is commonly associated with skin sensitivities. Omega-3 and omega-6 sources (fish oil, flaxseed) support skin and coat health.
• Taurine included or supplemented. Some research links grain-free diets to lower taurine levels, which may play a role in the DCM discussion. Formulas that include taurine or taurine-rich ingredients (like fish and organ meats) add a layer of reassurance.

Grain-Free Formula Comparison for Large Breeds

Prices and formulations at time of writing. Always check the current label before purchasing.

5 Grain-Free Formulas Worth Considering

All ingredient details and nutritional claims below reflect formulations at the time of writing. Formulations change, so always check the current label before buying.

1. Orijen Original

Orijen consistently ranks among the highest-quality grain-free options available. At the time of writing, the formula uses fresh and raw animal ingredients (free-run chicken, turkey, wild-caught fish, cage-free eggs) making up the bulk of the recipe. At 38% protein and 18% fat, it exceeds what most German Shepherds need and suits active dogs particularly well.

The ingredient list is where Orijen separates itself. Animal protein dominates the first several slots, with legumes playing a supporting role rather than a starring one.

Pros: Exceptionally high animal protein content. Multiple named protein sources up front. Includes omega-rich fish ingredients. Legumes aren’t the primary carb base. Cons: Premium price (roughly $90 for 25 lbs). Rich formula may cause loose stool during transition. High protein may be more than less active or senior Shepherds need.

2. Taste of the Wild High Prairie

For owners who want grain-free without the premium price, Taste of the Wild delivers solid nutrition at a reasonable cost. Bison and venison give it a novel protein profile that works for dogs with sensitivities to chicken or beef. At 32% protein and 18% fat, the macros are appropriate for an active adult.

The formula includes dried chicory root as a prebiotic, which can support digestive health in a breed that often needs the help.

Pros: Best price-to-quality ratio on this list (~$55 for 28 lbs). Novel proteins avoid common allergens. Prebiotic fiber for digestion. Widely available. Cons: Peas and sweet potatoes feature prominently. Some dogs may not find bison as appealing as chicken-based foods. Lower protein than Orijen or Instinct.

3. Merrick Grain-Free Real Texas Beef

If your dog is picky about food, Merrick’s beef formula is worth trying. Deboned beef as the first ingredient gives it a strong flavor profile that tends to appeal to selective eaters. The 34% protein and 17% fat hit a comfortable range for adults.

USA-made with traceable ingredient sourcing. The formula includes glucosamine and chondroitin, though their efficacy at kibble-level doses is debated among veterinary nutritionists.

Pros: Strong beef flavor for picky dogs. USA-made with transparent sourcing. Joint-support additives included. Cons: 22-lb bag means frequent repurchasing for a large breed. Beef is a common allergen, so not ideal if allergies prompted the switch. Contains peas and potatoes as primary carb sources.

4. Instinct Original Grain-Free

Instinct pushes protein to 37% with 20.5% fat, making it the richest formula here. Cage-free chicken is the primary protein, and freeze-dried raw pieces mixed into the kibble add both nutrition and palatability.

This food suits active dogs that need calorie-dense nutrition. Working lines or naturally high-energy dogs may benefit from the higher macros. For less active dogs or those carrying extra weight, this formula may be too rich.

Pros: Highest combined protein and fat on this list. Freeze-dried raw pieces add variety and flavor. No corn, wheat, soy, or artificial preservatives. Cons: High fat can lead to weight gain in less active dogs. Chicken is a common allergen. Premium pricing. Rich formula needs a slow transition.

5. Acana Grasslands

Acana takes a multi-protein approach: lamb, duck, eggs, and freshwater fish in one formula. At 35% protein and 17% fat, the nutrition is strong and well-balanced. The variety of protein sources provides a broader amino acid profile than single-protein formulas.

Made by the same company as Orijen (Champion Petfoods), Acana follows a similar ingredient philosophy at a slightly lower price point. For a head-to-head on macros, ingredients, and price, see our Orijen vs Acana comparison.

Pros: Multiple animal protein sources for a complete amino acid profile. Balanced macros for both active and moderately active dogs. 25-lb bag is practical for the breed. Cons: Multi-protein formula is harder to use for elimination diets. Contains eggs, a less common but recognized allergen. Availability can be inconsistent at local retailers.

How to Transition to Grain-Free

Switching food abruptly is a common mistake — dogs with sensitive stomachs will let you know. Transition gradually over 7 to 10 days:

• Days 1-3: 75% old food, 25% new food
• Days 4-6: 50/50 mix
• Days 7-9: 25% old food, 75% new food
• Day 10: 100% new food

If you notice loose stool or discomfort during the switch, slow it down. Some dogs need a full two weeks to adjust, particularly when moving from a grain-inclusive to a grain-free formula.

Talk to Your Vet Before Switching

Grain-free is one of those decisions that genuinely benefits from a conversation with your vet. Not because grain-free food is dangerous, but because the reason you’re considering it matters. A vet can help determine whether your dog actually has a grain sensitivity, whether the symptoms point to something else entirely, or whether a grain-inclusive food with better ingredients would solve the problem more simply.

If your dog does need grain-free, the formulas above all deliver strong nutrition for a large breed. Prioritize the ones where animal protein leads the ingredient list, and keep an eye on legume content given the ongoing DCM research. Grain-free tends to cost more than standard kibble. If budget is a factor, our feeding cost breakdown can help you plan.

I feed my own Shepherd a grain-inclusive diet because he does well on it and there’s no medical reason to switch. If he had a confirmed grain allergy, I’d go with one of the animal-protein-heavy options on this list without hesitation — Acana or Orijen, most likely, given how the ingredient lists read.

For a broader look at nutrition and more food options, visit our feeding guide. If you’re comparing kibble options more broadly, our dry kibble picks cover grain-inclusive and grain-free side by side.