Go! Solutions vs Open Farm vs Zignature Dry Dog Food: Protein Sources, Calorie Density and Cost per Day Compared

The verdict

Verdict: For dogs with itchy skin, loose stool or a suspected protein intolerance, Zignature takes it — single animal protein, no chicken, no egg, no potato, and roughly 30% protein content on most formulas. Open Farm wins for owners who care about sourcing transparency and want a higher-calorie, ancient-grain option. Go! Solutions wins on breadth: it's the only one of the three with a limited-ingredient line, a high-protein carnivore line and grain-inclusive recipes under one label, which makes it the easiest to switch within when a formula doesn't work out. You can compare all three side by side in our dry dog food collection.

The single biggest deciding factor isn't the ingredient panel — it's calorie density. A 3,600 kcal/kg kibble and a 4,000 kcal/kg kibble at the same bag size will differ by close to two weeks of feeding for a 30 lb dog, and that gap decides real cost per day more than the sticker on the shelf does. Owners browsing dog food options often miss this.

Where Go! Solutions wins

Go! Solutions covers the widest range of nutritional needs of the three brands, from a 24% protein limited-ingredient salmon recipe up to Carnivore formulas exceeding 33% protein content. That range matters because switching lines within one brand keeps the fat content, kibble size and palatant profile similar, which usually means fewer digestive upsets during a transition.

The Sensitivities line is the reason most people walk in asking about this brand. It uses one animal protein — salmon, duck, lamb, venison or pollock depending on the recipe — with no gluten, no artificial preservatives and a short carbohydrate list. Guaranteed analysis on the salmon recipe runs roughly 24% protein minimum, 12% fat minimum and 4% crude fiber maximum, with about 3,700 kcal/kg. That's above the 18% adult-maintenance protein minimum that AAFCO model regulations still specify for dry-matter adult formulas, and comfortably above the 22.5% growth minimum on the Carnivore side.

In our store we see a specific pattern: owners who've already tried two or three grain-free bags and hit a wall come in wanting a full reset. Our team at Ashario Pets recommends starting with a single-protein Sensitivities bag for 8 to 12 weeks before drawing conclusions, because skin turnover takes that long to reflect a diet change. The Carnivore recipes, by contrast, suit lean working-type dogs and the kind of high-energy retrievers you see running the off-leash field at Downsview Park through February slush.

Calorie math on Go! Solutions

A 30 lb (13.6 kg) moderately active adult dog needs roughly 700–750 kcal per day. At 3,700 kcal/kg, that's about 189–203 grams of Sensitivities kibble daily. A 22 lb (9,979 g) bag therefore lasts around 50–53 days for that dog. Run the same math on a Carnivore recipe at ~4,100 kcal/kg and the bag stretches closer to 58 days.

Where Open Farm wins

Open Farm's advantage is traceability plus calorie density. Every bag carries a lot code you can enter on the company's site to see the farms and fisheries behind that batch, and the Homestead Turkey & Chicken recipe sits near 29% protein, 18% fat and roughly 3,850 kcal/kg — the highest energy density of the three brands in this comparison.

That density has a practical effect. At 3,850 kcal/kg, the same 30 lb dog eats about 182 grams a day instead of 195, so a 22 lb bag delivers roughly 55 days of feeding. Over a year that's about six and a half bags instead of seven. Owners who feed two 60 lb dogs notice the difference faster than single-dog households do.

The Ancient Grains recipes are worth flagging separately. They drop to about 26% protein content but add oats, quinoa and millet — useful for dogs whose stools firm up on some grain inclusion, and a reasonable middle path given ongoing FDA Center for Veterinary Medicine interest in grain-free diets and canine cardiac health. Open Farm also adds guaranteed omega-3 and omega-6 fatty acids from wild salmon oil, along with probiotics for gut support. Any decision about grain-free versus grain-inclusive for a specific dog belongs with your veterinarian, not a blog post.

Where Zignature wins

Zignature is built around one idea: remove the proteins dogs most commonly react to. No chicken, no chicken fat, no egg, no potato and no corn, wheat or soy across the range, with a single named animal protein leading each recipe — lamb, trout and salmon meal, kangaroo, catfish, pork, duck or turkey.

Guaranteed analysis on the lamb formula runs about 30% protein minimum, 15% fat minimum, 4% fiber maximum and roughly 3,600 kcal/kg. That's the lowest calorie density of the three, meaning about 194–208 grams per day for a 30 lb dog — but Zignature bags run to 25 lb (11,340 g), so the practical result is roughly 55–58 days per large bag. Bag size offsets density here, which is exactly why comparing per-kilogram price alone misleads people.

Pet owners tell us the kangaroo and catfish recipes are the ones that finally worked after a long elimination process. Those novel proteins are genuinely novel for most Canadian dogs, which is the whole point of a limited ingredient strategy. The Tufts Cummings Veterinary Medical Center nutrition service has published extensively on why true diet trials need a protein the dog has never eaten — not simply a different flavour of the same one.

Which should you pick?

Match the brand to the problem you're actually solving, not to the prettiest bag. Three common scenarios from our floor:

• Chronic ear infections and paw licking, chicken already suspected: Zignature. A single novel protein with no egg or potato gives you the cleanest diet trial, and the lamb or catfish recipes are the usual starting points at roughly 30% protein content.
• Two large dogs, budget-conscious, no health issues: Open Farm Homestead or Ancient Grains. The ~3,850 kcal/kg density and 22 lb bag size deliver the lowest grams-per-day of the three, and the lot-code traceability is a genuine differentiator.
• Sensitive stomach now, but you may need to change again: Go! Solutions. Starting in Sensitivities and moving to Skin + Coat Care or a grain-inclusive recipe keeps you inside one manufacturing profile, which usually means a smoother switch. Pair it with our dog health and wellness range if your vet suggests added probiotics or omega-3 support.

How to calculate real cost per day

Use this formula instead of comparing bag prices: bag price ÷ bag weight in grams × grams your dog eats per day. Grams per day = your dog's daily kcal ÷ (kcal/kg ÷ 1,000). A 13.6 kg dog at 725 kcal on a 3,700 kcal/kg food eats 196 g daily. Our nutrition experts at the North York store will run that number with you on any bag, and we'll honour our price match guarantee once you've picked. For life-stage formulation questions — puppies, seniors, breed-specific nutrition — check the best pet food for specific needs guide.

Bottom line: Zignature is the strongest limited-ingredient choice of the three at roughly 30% protein with one animal protein per recipe. Open Farm's ~3,850 kcal/kg density and traceable sourcing make it the value pick for multi-dog homes. Go! Solutions offers the widest formula range under one brand, from 24% protein LID recipes to 33%+ Carnivore options.

Common questions

Is Go! Solutions Sensitivities dry dog food good for dogs with food allergies?

Go! Solutions Sensitivities uses one animal protein per recipe with no gluten or artificial preservatives, which makes it a reasonable limited-ingredient starting point at about 24% protein and 3,700 kcal/kg. It isn't a diagnosis. Confirmed food allergies need a veterinarian-supervised elimination trial, typically 8 to 12 weeks long.

What is Open Farm kibble's protein content?

Open Farm dry recipes generally run 26% to 29% minimum crude protein on the guaranteed analysis, with 15% to 18% minimum fat. The Homestead Turkey & Chicken recipe sits near 29% protein and roughly 3,850 kcal/kg, while the Ancient Grains line drops closer to 26% protein with added oats and quinoa.

Is Zignature limited ingredient kibble grain-free?

Most Zignature recipes are grain-free, using chickpeas and peas as the carbohydrate base, and the brand excludes chicken, egg, potato, corn, wheat and soy entirely. A smaller ancient-grain line adds oats and millet. If your dog has a cardiac history, discuss grain-free versus grain-inclusive with your veterinarian first.

How do I compare kibble cost per day between brands in Canada?

Divide bag price by bag weight in grams, then multiply by your dog's daily gram portion. Portion equals daily kcal divided by the food's kcal per gram. Because calorie density varies from about 3,600 to 4,100 kcal/kg across these three brands, per-day cost can differ 10% or more even at identical bag prices.