Nulo vs Purina Pro Plan Dog Food (2026)
Quick Verdict
| Category | Nulo | Purina Pro Plan |
|---|---|---|
| Overall Score | 8.4/10 | 8.8/10 |
| Ingredient Quality | Very Good | High |
| Price (avg bag) | ~$68–$80/24 lb | ~$65–$75/30 lb |
| AAFCO Compliant | Yes | Yes |
| Best For | High protein, low glycemic, athletic dogs | Probiotics, vet-grade, life stages |
Overview
Nulo (Austin, TX, 2009) focuses on high-protein, low-glycemic formulas with BC30 probiotic (Bacillus coagulans). Designed for lean muscle mass and weight management in active dogs.
Purina Pro Plan features live Lactobacillus probiotics, extensive research backing, and vet recommendation. Wide specialty formula range.
Ingredient Comparison
Nulo Freestyle features deboned salmon, salmon meal, turkey as primary proteins. BC30 probiotic. Low-glycemic chickpeas and lentils. 80% animal-sourced protein. No corn, wheat, soy.
Purina Pro Plan features real chicken first. Live Lactobacillus probiotics. EPA from fish oil. Corn gluten meal secondary.
Nutritional Snapshot
| Nutrient | Nulo Freestyle Salmon | Pro Plan Adult Chicken |
|---|---|---|
| Crude Protein (min) | 30% | 26% |
| Crude Fat (min) | 16% | 16% |
| Calories (kcal/cup) | ~395 | ~435 |
Pros and Cons
Nulo
Pros
- 30% protein from 80% animal sources
- BC30 probiotic (shelf-stable strain)
- Low-glycemic carbohydrate profile
- No corn, wheat, soy
- Excellent for athletic breeds
Cons
- More expensive per pound
- Grain-free DCM advisory
- Less widely available
Purina Pro Plan
Pros
- Live Lactobacillus probiotics
- Higher caloric density (~435 kcal/cup)
- Extensive vet recommendation network
- Prescription diet line available
Cons
- Lower protein than Nulo
- Contains corn derivatives
Best For
Choose Nulo if: Athletic or active breeds that need high protein and low-glycemic nutrition.
Choose Pro Plan if: Vet-recommended precision nutrition with live probiotics and specialized formulas.
Alternatives
- [Nulo vs Blue Buffalo](/compare/nulo-vs-blue-buffalo)
- [Wellness vs Purina Pro Plan](/compare/wellness-vs-purina-pro-plan)
FAQ
What is BC30 probiotic? Bacillus coagulans—a highly shelf-stable probiotic strain that survives the manufacturing process better than Lactobacillus. Supports gut microbiome and stool quality.
Is Nulo good for weight management? Yes. The low-glycemic carb profile and high protein help maintain lean mass. Nulo also has a dedicated weight management formula.
Which has more protein? Nulo at 30% vs. Pro Plan at 26%.
Is Nulo available at PetSmart? Yes, though selection is more limited than Pro Plan.
Has Nulo been recalled? No recalls on record.
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