GrassSaver Wafers Supplement
Verified Jun 4, 2026
A daily chewable supplement for dogs over 12 weeks, formulated with dl-methionine, cranberry, yucca, probiotics, and digestive enzymes. It’s designed to help maintain a normal urine pH and support urinary tract and kidney health while also aiming to lessen urine-related lawn discoloration. This product is intended as a supplement alongside your dog’s regular complete and balanced diet.
This is a targeted urinary support supplement for dogs whose owners are concerned about lawn spotting, using dl-methionine, cranberry, and yucca along with a vitamin B blend, probiotics, and enzymes. Nutritionally, it’s not meant to replace a complete food, but as an add-on it offers a thoughtful mix of urinary and digestive support ingredients. It can be reasonable for otherwise healthy adult dogs, but any dog with a history of urinary stones, kidney disease, or urinary issues should be evaluated by a veterinarian before using an acidifying product like this.
The KibbleLab Score (1–10) is assessed from publicly available product data. Our evaluation is science-based, not marketing-based.
KibbleLab may earn an affiliate commission when you buy through a link. No one can pay for a higher score, or to change what we recommend for your pet.
At a Glance
KibbleLab Review
Strengths
- Contains dl-methionine to acidify urine, which is the standard approach for products intended to reduce lawn burn from dog urine.
- Includes cranberry and a vitamin B blend that can support general urinary tract health and overall metabolism.
- Adds probiotics (Bacillus coagulans), prebiotic fructooligosaccharides, and digestive enzymes, which may support gut health and digestion.
- Formulated specifically for dogs over 12 weeks, with clear species restriction so it’s not mistakenly given to cats.
Considerations
- Dl-methionine changes urine pH; dogs with a history of urinary stones, urinary tract disease, or kidney problems should not receive this without veterinary guidance.
- This is a supplement, not a complete and balanced diet, so it must be fed along with a regular dog food that meets all nutritional requirements.
- Dairy-derived ingredients (dried whey, non-fat dry milk) are present and could be an issue for dogs with dairy sensitivities.
- The goal is mainly lawn-related; if a dog has increased thirst, urination, accidents, or urinary discomfort, a veterinary exam is more appropriate than relying on a supplement.
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
DL-Methionine
DL‑methionine is a synthetic, racemic form of the essential sulfur‑containing amino acid commonly added to dog and cat foods to meet methionine requirements for protein synthesis, support skin and coat health, and to acidify urine when clinically indicated to help prevent struvite crystals. Only the L‑isomer is directly used by the body (the D‑isomer is converted), and while it can be a precursor to cysteine and indirectly to taurine, it does not replace dietary taurine for cats; excessive supplementation can upset amino acid balance or over‑acidify urine, so it should be used at recommended levels.
02
Cranberry Fiber
Cranberry fiber is a fiber-rich ingredient derived from cranberry pomace used in pet foods to provide soluble and insoluble fiber for digestive health and improved stool quality, while also contributing antioxidant polyphenols. In dogs and cats it can help regulate intestinal transit and fecal bulk and may supply cranberry compounds sometimes associated with urinary tract support, but evidence is limited and high inclusion levels can reduce calorie density, affect palatability, or cause loose stools, so it should not replace veterinary treatment when needed.
03
Vitamin B
Vitamin B refers to the B‑complex group of water‑soluble vitamins commonly added to pet foods to support energy metabolism, nervous system function, healthy skin and coat, red blood cell formation and appetite, and are often supplemented because processing and storage can deplete natural levels. These vitamins are essential for both dogs and cats (cats have a higher thiamine requirement and may show neurologic signs if deficient); they are generally safe because excess is excreted in urine, but true deficiencies require veterinary diagnosis and targeted supplementation.
04
Biotin
Biotin (vitamin B7) is a water‑soluble vitamin added to pet foods as a micronutrient to support energy metabolism and healthy skin, coat, and paw pad integrity in dogs and cats. Deficiencies are uncommon with commercial diets but supplementation can help with dermatitis or poor coat quality—biotin is generally safe at recommended levels, though therapeutic or high‑dose use should be done under veterinary guidance and raw egg whites can interfere with biotin absorption.
05
Vitamin B12
Vitamin B12 (cobalamin) is an essential water‑soluble vitamin commonly added to pet foods and supplements to support red blood cell production, neurological function, DNA synthesis, and normal energy metabolism in dogs and cats. It helps prevent deficiency signs such as anemia, poor appetite, weight loss and neurologic abnormalities, and is particularly important in diets low in animal ingredients or in pets with gastrointestinal malabsorption—generally safe because excess is excreted, though animals with GI disease may need higher or parenteral dosing under veterinary guidance.
Product Details & Brand
Product Specs
Brand
NaturVet is a leading brand of pet supplements offering a wide range of products for dogs, cats, and horses, focusing on natural health support including joint, digestive, allergy, and behavioral care. The brand targets pet owners seeking holistic, natural, and vet-formulated wellness solutions.
Visit NaturVetManufacturer
NaturVet manufactures products in-house at its Temecula, California facility that is compliant with current Good Manufacturing Practices (cGMP). The company maintains NASC (National Animal Supplement Council) certification, ensuring standardized manufacturing, ingredient safety, and product quality.
Manufacturing details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing.
Recall History
NaturVet GrassSaver Wafers Supplement has no recalls since 2014.
Source: FDA Pet Food Recall Database · Monitored daily
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Frequently Asked Questions
Has NaturVet ever been recalled?
We have no recalls on record for NaturVet. 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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