Petaluma Senior vs. Wild Earth Performance: Which Plant-Based Food Is Best for Senior Dogs?

 

By the time a dog reaches age seven, their nutritional needs are already shifting. Cognitive function, joint health, and kidney load all start to ask different things of the food in the bowl. If you have been feeding your dog Wild Earth Performance, or you are weighing it against Petaluma's senior recipe for an older pup, the question is not really which brand is better. It is which formula is built for the stage of life your dog is in. This post compares Petaluma Senior vs. Wild Earth Performance head to head, with a focus on how each one supports the specific needs of senior dogs.

Quick Comparison: Petaluma Senior vs. Wild Earth Performance

Wild Earth's Performance Formula is the brand's flagship plant-based recipe, designed for active and working adult dogs. It delivers 28% protein and 11% fat, with marketing language that highlights endurance, recovery, and lean muscle support.

Petaluma's senior recipe, Baked Pumpkin & Peanut Butter Flavor for Senior Dogs, is formulated specifically for aging dogs. It is veterinarian-formulated and reviewed by board-certified veterinary nutritionists, baked rather than extruded, and built around the nutritional changes that come with age: more DHA for cognitive support, added glucosamine for joint comfort, reduced phosphorus for kidney health, slightly lower calorie density for less active dogs, and added pumpkin fiber for digestive ease. Both Senior and Adult are AAFCO adult maintenance compliant; the senior recipe layers targeted additions and adjustments on top of that baseline.

Wild Earth does not currently offer a senior-specific formula. Their lineup includes Performance (28% protein) and Maintenance (23% protein), with the Maintenance formula marketed as suitable for older healthy adults. Neither contains added glucosamine, curcumin, or the elevated DHA levels found in a purpose-built senior recipe.

How Senior Dogs' Nutritional Needs Change With Age

"Senior dog food" is not a separately regulated life stage. AAFCO (the body that sets U.S. pet food nutrient profiles) defines two life stages: growth and adult maintenance. That means a senior recipe still has to meet the adult maintenance nutrient profile as its baseline, so the foundational nutrition is held to the same regulatory standard as any adult food. The senior-specific work happens on top of that baseline: nutrients added (like elevated DHA and glucosamine for cognitive and joint support) and adjusted (like reduced phosphorus and lower calorie density).

That is also why a 2025 study in Frontiers in Veterinary Science found wide variability among commercial "senior" diets, with no consistent differences from adult products. The word "senior" on a bag does not, on its own, tell you what is meaningfully different inside. The right question is: what specific additions or adjustments has this senior recipe made on top of the adult baseline, and are those a good fit for your dog?

Cognitive aging and DHA

DHA (docosahexaenoic acid) is a structural component of the brain and retina. A peer-reviewed study by Hadley et al. (2017) in Prostaglandins, Leukotrienes and Essential Fatty Acids found that aged beagles fed DHA-rich algae showed improvements in shape discrimination learning associated with visual processing. Other research on senior dogs supplemented with DHA-containing nutrient blends has shown improvements in working memory and spatial learning. Increasing DHA as dogs age is one of the more evidence-supported nutritional adjustments pet parents can make.

Joint comfort and inflammation

Joint health is the most visible sign of aging in many dogs. Glucosamine has been studied in dogs with osteoarthritis: McCarthy et al. (2007), a randomized double-blind trial in The Veterinary Journal, found significant improvements in pain and weight-bearing by day 70 of glucosamine/chondroitin supplementation. The evidence base is mixed across products and doses, but glucosamine remains one of the most commonly recommended nutritional supports for canine joint health.

Heart, kidney, and caloric needs

The 2023 AAHA Senior Care Guidelines address nutritional management for aging dogs, including dietary considerations for chronic kidney and cardiovascular concerns. UC Davis Veterinary Medicine notes that dietary phosphorus restriction has been shown to slow the progression of renal failure in dogs. Caloric needs typically drop with age as activity decreases, so calorie-dense performance foods can contribute to weight gain in less active senior dogs.

Side-by-Side: Nutrient and Feature Comparison

Here is how the two formulas compare on the metrics that matter most for older dogs. Wild Earth Performance values are guaranteed analysis minimums and maximums; Petaluma Senior values are published per cup amounts.

Feature	Petaluma Senior Baked	Wild Earth Performance
Life stage	Senior-specific	Active adult
Crude protein (min)	26.5%	28.0%
Crude fat (min)	9.5%	11.0%
Calories per cup	390 kcal	Higher (active adult formula)
DHA per cup	450 mg (min)	0.05% min (~50–60 mg estimated)
Glucosamine	150 mg/cup (min)	Not included
Curcumin (turmeric extract)	100 mg/cup (min)	Not included
Reduced sodium and phosphorus	Yes (senior-specific)	No
Added fiber for digestion	Pumpkin (~3 tbsp per cup equivalent)	Inulin, FOS
Processing method	Baked	Extruded
Veterinarian-formulated	Yes (Dr. Blake Hawley DVM)	Veterinary-developed
Certifications	B Corp, Climate Neutral, 1% for the Planet	Not certified

Joint, Brain, and Kidney Support: Where the Formulas Differ

Cognitive support: supplement-level DHA built into the food

Petaluma Senior guarantees 450 mg of DHA per cup, sourced from marine microalgae. That is a supplement-level dose: comparable to what many pet parents add in capsule or oil form for cognitive aging. Wild Earth Performance lists DHA at 0.05% (minimum), which works out to roughly 50 to 60 mg per cup based on typical kibble densities. That is a meaningful gap if cognitive support is a priority for your senior dog.

Both brands use marine microalgae as their DHA source. Research, including the Hadley et al. study, supports algae-derived DHA as an effective source for canine cognitive and visual support. The difference between the two foods here is dose, not source. Read more about why algae-based DHA matters.

Joint support: glucosamine and curcumin in every cup

Petaluma Senior includes 150 mg of glucosamine and 100 mg of curcumin (turmeric extract) per cup, both at supplement-level doses. Curcumin is widely used by pet parents as an anti-inflammatory support for aging joints; glucosamine has been studied in canine osteoarthritis with McCarthy et al. (2007) showing clinical improvement in pain and weight-bearing by day 70 of supplementation. Wild Earth Performance does not include either ingredient in its formulation.

For pet parents who already give their senior dog a separate joint or anti-inflammatory supplement on top of their food, the math is straightforward: Petaluma Senior delivers those nutrients in the bowl at clinically relevant doses, removing the need for an additional supplement.

Reduced sodium, phosphorus, and calorie density

Senior recipes commonly reduce sodium and phosphorus to align with AAHA's senior care guidelines for aging dogs (especially those with early kidney or cardiovascular changes), and reduce calorie density to suit dogs whose activity has slowed. Petaluma Senior is formulated with all three of these adjustments. Wild Earth Performance, by contrast, is built for active adult dogs and is more calorie-dense by design.

Where Each Formula Fits Best

Wild Earth Performance

Wild Earth Performance is a solid plant-based recipe. It is AAFCO-compliant, hypoallergenic, and a good option for adult dogs of varying activity levels. Wild Earth has been an important presence in the plant-based category and has helped expand awareness of plant-based nutrition for dogs.

What it does not include are the senior-specific additions: elevated DHA, glucosamine, curcumin, or reduced sodium and phosphorus. Pet parents feeding Wild Earth Performance to a senior dog often add separate omega-3, joint, and anti-inflammatory supplements on top of the food to provide the senior support that the formula does not include.

Petaluma Senior Baked: the only plant-based formula customized for senior dogs in the U.S.

Petaluma's Baked Pumpkin & Peanut Butter Flavor for Senior Dogs is the only plant-based dog food in the United States customized for the senior life stage. What makes it unique is that it includes supplement-level doses of three nutrients pet parents commonly add separately for aging dogs: 450 mg of DHA per cup for cognitive and inflammatory support, 150 mg of glucosamine per cup for joint comfort, and 100 mg of curcumin per cup for inflammation. Reduced sodium and phosphorus, lower calorie density, and added pumpkin fiber round out the senior-specific formulation.

Practically, that means a senior dog on Petaluma Senior gets the foundational nutrition of an AAFCO-compliant plant-based food plus the targeted senior support most pet parents would otherwise build through a stack of supplements, all in one bowl. The formula is veterinarian-formulated and reviewed by board-certified veterinary nutritionists, baked rather than extruded, and made in a solar-powered U.S. facility. Petaluma is certified B Corp, Climate Neutral, and a 1% for the Planet member. More on what to look for in a senior plant-based food.

How to Decide Between Them

A few questions can help you choose between Petaluma Senior and Wild Earth Performance for your dog:

How active is your dog? If your dog is highly active, working, or genuinely athletic, Wild Earth Performance's higher protein and fat content may suit them well. If your dog is moderately or lightly active (which describes most senior dogs), the lower calorie density of a senior formula is a better match.

Are joint comfort or cognitive aging on your radar? If yes, the added glucosamine and elevated DHA in Petaluma Senior provide built-in functional support. With Wild Earth Performance, those would need to come from separate supplements.

Has your vet flagged kidney concerns? Reduced phosphorus in a senior recipe aligns with common veterinary recommendations for aging dogs with early kidney changes. More on the difference between adult and senior dog food.

Does sustainability factor into your choice? Petaluma is B Corp and Climate Neutral certified, with a small environmental footprint by design. Wild Earth markets sustainability but is not third-party certified at the same level.

The simplest way to test fit: try a sample. Some dogs love a flavor profile and some do not, and a senior dog's preferences can shift over time. Petaluma offers a senior sample so your dog can decide alongside you.

Frequently Asked Questions

Can I feed Wild Earth Performance to a senior dog?

Yes. Wild Earth Performance is AAFCO-compliant and a fine plant-based food for adult dogs of varying activity levels. It does not include senior-specific additions like elevated DHA, glucosamine, curcumin, or reduced sodium and phosphorus, so many pet parents who feed it to a senior dog add omega-3, joint, and anti-inflammatory supplements separately to support aging.

What is the best plant-based dog food for senior dogs?

Petaluma's Baked Pumpkin & Peanut Butter Flavor for Senior Dogs is the only plant-based formula in the U.S. customized for the senior life stage. It includes supplement-level doses of DHA (450 mg/cup), glucosamine (150 mg/cup), and curcumin (100 mg/cup) along with reduced sodium, phosphorus, and calorie density, built directly into the food.

Do senior dogs need less protein than adult dogs?

Older research suggested senior dogs needed less protein, but more recent veterinary nutrition research suggests that healthy senior dogs do well on quality protein at adequate levels. The shift is more about protein quality, calorie density, and added functional nutrients than about cutting protein. Petaluma Senior provides at least 26.5% crude protein (with actual measured values typically higher), well within the range supported for healthy aging dogs.

Why is DHA important for older dogs?

DHA is a structural component of the brain and retina. Hadley et al. (2017) found that aged beagles fed DHA-rich algae showed improvements in shape discrimination learning related to visual processing. Increasing DHA as dogs age is one of the more evidence-supported nutritional adjustments pet parents can make for cognitive health.

Can I switch my senior dog from Wild Earth to Petaluma?

Yes. The transition between two quality plant-based foods is typically smoother than a transition between an animal-based diet and a plant-based one. We recommend a gradual transition over 7 to 10 days, mixing in increasing amounts of Petaluma each day. Try a sample first to confirm your dog enjoys the flavor.

Does plant-based dog food provide enough protein for senior dogs?

A well-formulated plant-based food provides complete and balanced protein with all essential amino acids. Petaluma Senior provides at least 26.5% crude protein, well above AAFCO's adult maintenance minimum of 18%. The bigger question for senior dogs is protein quality and digestibility, not the source. Plant proteins like potato protein, peas, and yeast can provide all required amino acids when formulated correctly.

Is Petaluma Senior more expensive than Wild Earth Performance?

Pricing varies by bag size, subscription versus one-time order, and any current promotions. The fairer comparison is cost per month at your dog's recommended feeding amount, not price per bag. Petaluma includes added joint and cognitive support nutrients in the food itself, which may offset the cost of separate supplements that pet parents commonly add for senior dogs.

References

1. Hadley KB, Bauer J, Milgram NW. The oil-rich alga Schizochytrium sp. as a dietary source of docosahexaenoic acid improves shape discrimination learning associated with visual processing in a canine model of senescence. Prostaglandins, Leukotrienes and Essential Fatty Acids. 2017;118:10-18. pubmed.ncbi.nlm.nih.gov
2. McCarthy G, O'Donovan J, Jones B, et al. Randomised double-blind, positive-controlled trial to assess the efficacy of glucosamine/chondroitin sulfate for the treatment of dogs with osteoarthritis. The Veterinary Journal. 2007;174(1):54-61. pubmed.ncbi.nlm.nih.gov
3. Bhathal A, Spryszak M, Louizos C, Frankel G. Glucosamine and chondroitin use in canines for osteoarthritis: A review. Open Veterinary Journal. 2017;7(1):36-49. pmc.ncbi.nlm.nih.gov
4. German A, Melgoza V, Torres-Henderson C. Exploratory analysis of nutrient composition of adult and senior dog diets. Frontiers in Veterinary Science. 2025;12:1717409. frontiersin.org
5. 2023 AAHA Senior Care Guidelines for Dogs and Cats — Disease Management: Nutritional. American Animal Hospital Association. aaha.org
6. UC Davis School of Veterinary Medicine. Nutritional Management of Chronic Renal Disease. vetmed.ucdavis.edu
7. AAFCO Dog Food Nutrient Profiles. Association of American Feed Control Officials. aafco.org
8. Enhancing cognitive functions in aged dogs and cats: a systematic review of enriched diets and nutraceuticals. GeroScience. 2025. link.springer.com