Dogzymes Cran-Tri-C Vitamin C Supplement Powder
Verified Jun 14, 2026
This is a cranberry-based vitamin C supplement powder for dogs, intended to support urinary tract health, antioxidant intake, and connective tissue in both adults and growing puppies. It combines cranberry powder with two concentrated vitamin C sources (sodium ascorbate and ascorbic acid) to deliver a high dose of vitamin C per teaspoon. It’s designed to be added to regular meals rather than used as a complete diet.
Nutritionally, this is a straightforward, high–vitamin C supplement with cranberry as the base ingredient, aimed at supporting urinary tract health and connective tissue in dogs of any age. It delivers a substantial vitamin C dose in a simple formula with few extra ingredients. This can be a reasonable option for dogs who need additional vitamin C or cranberry support on top of a complete, balanced diet, ideally under veterinary guidance.
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At a Glance
KibbleLab Review
Strengths
- Very simple ingredient list, with cranberry powder plus two well-known vitamin C sources (sodium ascorbate and ascorbic acid).
- Provides a clearly stated, high vitamin C dose per measured amount, which makes dosing more precise for owners and veterinarians.
- Cranberry powder may be helpful for some dogs where urinary support is desired, and it also contributes natural antioxidants.
- Powder form makes it easy to mix into food for dogs that won’t take tablets or capsules.
Considerations
- This is a supplement, not a complete diet, so it should only be used alongside a balanced dog food rather than as a primary nutrition source.
- The vitamin C dose is relatively high; in some dogs this could lead to soft stools or gastrointestinal upset, so starting slowly and monitoring tolerance is important.
- Dogs with a history of urinary crystals, stones, or other urinary issues should only receive extra vitamin C under veterinary supervision, since it can influence urine pH in some cases.
- Evidence for cranberry and vitamin C in preventing or managing urinary problems in dogs is mixed, so expectations should be realistic and they should not replace appropriate medical treatment when needed.
Full Ingredient List
Ingredients and analysis reflect manufacturer data at the time of our last update and can change without notice. Always check the actual product packaging before feeding.
Ingredient filtering helps identify compatible options but is not a substitute for a veterinary elimination diet.
Top 5 Ingredients Explained
01
Cranberry
Cranberries are used in pet foods and supplements as a source of fiber and antioxidants (notably polyphenols/proanthocyanidins) and are commonly included for their potential urinary tract–supporting properties in dogs and cats. While these compounds may help inhibit bacterial adhesion in the urinary tract, scientific evidence in pets is limited, and owners should choose unsweetened, preservative-free preparations (avoiding products sweetened with xylitol), watch for gastrointestinal upset or effects on urine pH, and consult a veterinarian for pets with urinary stones or taking certain medications.
02
Sodium Ascorbate
Sodium ascorbate is the sodium salt of vitamin C often used in pet foods as a stable, water‑soluble antioxidant and as a preserved source of ascorbate to protect fats and vitamins from oxidation. Because dogs and cats generally synthesize vitamin C endogenously, routine supplementation is usually unnecessary, but sodium ascorbate can be used for product stability or specific needs; high doses may cause gastrointestinal upset and the extra sodium should be considered for pets on sodium‑restricted diets.
03
Ascorbic Acid
Ascorbic acid is the chemical form of vitamin C commonly used in pet foods as an antioxidant and preservative to protect fats, flavors, and other vitamins from oxidation and sometimes included as a supplemental source of vitamin C. Dogs and cats generally synthesize vitamin C endogenously so it is not essential in most diets, but added ascorbic acid can support immune function and wound healing and help stabilize the product; large supplemental doses can cause gastrointestinal upset or increase urinary oxalate in susceptible animals, so extra supplementation should be guided by a veterinarian.
04
Other Vitamin
“Other Vitamin” typically denotes one or more vitamins added as part of a vitamin premix to provide essential micronutrients that support metabolism, immune function, skin and coat condition, vision and bone health in dogs and cats. While vitamins are necessary at species‑specific levels (for example, cats require preformed vitamin A), excessive supplementation—especially of fat‑soluble vitamins like A and D—can be harmful, so trusted pet foods follow AAFCO/NRC guidelines and should ideally list specific vitamins and amounts.
Product Details & Brand
Product Specs
Brand
Nature's Farmacy is the flagship brand offering animal health supplements, probiotics, digestive enzymes, and nutritional support products. It focuses on holistic, natural wellness solutions for pets and performance animals, targeting consumers seeking science-based yet natural options for animal health.
Visit Nature's FarmacyManufacturer
Products are manufactured in the USA under strict in-house quality control procedures. The company oversees its production to ensure consistency, purity, and efficacy of supplements, adhering to standard GMP (Good Manufacturing Practices) for animal supplements.
Manufacturing details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing.
Recall History
Nature's Farmacy Dogzymes Cran-Tri-C Vitamin C Supplement Powder has no recalls since 2014.
Source: FDA Pet Food Recall Database · Monitored daily
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Frequently Asked Questions
Has Nature's Farmacy ever been recalled?
We have no recalls on record for Nature's Farmacy. We monitor the FDA Pet Food Recall Database daily.
How does KibbleLab rate foods?
Our scores are based on ingredient composition, nutritional profile, AAFCO compliance, and health considerations. We don't penalize by-products, grains, or synthetic preservatives. Brands cannot pay for higher scores.
Is KibbleLab a substitute for veterinary advice?
No. KibbleLab provides data-driven food analysis, not medical advice. Always consult your veterinarian before making dietary changes, especially for pets with health conditions.
KibbleLab provides informational content only. This is not veterinary advice. Always consult a qualified veterinarian before changing your pet's diet.
KibbleLab may earn affiliate commissions through product links. No one can pay for a higher score, or to change what we recommend for your pet.
Product data sourced from manufacturer websites, AAFCO statements, and FDA recall database. Last verified dates reflect our most recent data check.
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