GrassSaver Wafers Supplement
Verified Sep 13, 2026
This is a chewable supplement for dogs designed to be given alongside their regular diet. It uses dl-methionine, cranberry, yucca, and added B vitamins, plus probiotics and digestive enzymes, to support urinary health while aiming to lessen lawn urine spots in dogs over 12 weeks of age.
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Strong Choice
This supplement is intended for dogs who are otherwise healthy but whose urine is causing yellow spots on the lawn. It combines urinary-support ingredients with probiotics and digestive enzymes. It is meant to be used in addition to a complete diet, not as a primary food.
Computed from 3 of 3 applicable checks. Missing data is skipped, never counted against a food.
The KibbleLab Score (1–10) is assessed from publicly available product data. Our evaluation is science-based, not marketing-based.
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At a Glance
Where these benefits come from
Benefits the manufacturer highlights in its own product marketing. KibbleLab lists them for reference and does not verify these claims.KibbleLab Review
Strengths
- Includes dl-methionine and cranberry, which are commonly used to support urinary tract health in dogs.
- Provides probiotics and digestive enzymes that may help support normal digestion when used with a balanced diet.
- Formulated specifically for dogs and clearly labeled as not for cats, which helps avoid species misuse.
- Chewable wafer format can make it easier to give to many dogs compared with powders or liquids.
Considerations
- This is a supplement only and does not provide complete and balanced nutrition, so it must be given with a regular dog food.
- Contains dairy-based ingredients like whey and non-fat dry milk, which may not suit dogs with dairy sensitivities.
- Includes dried whey and milk, so it is not appropriate for dogs needing a strictly dairy-free diet.
- Any supplement that changes urine characteristics should be used with guidance from your veterinarian, especially in dogs with urinary issues.
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
Nutrient Blend
A “Nutrient Blend” in pet food typically refers to a vitamin and mineral premix added to ensure the diet meets essential micronutrient requirements and helps make the product complete and balanced for dogs and/or cats. These blends support growth, immune function, skin/coat and bone health, but formulations vary — quality and correct dosing matter because imbalances or excesses of some vitamins or minerals can be harmful, so choose foods formulated to recognized standards (e.g., AAFCO/NRC).
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.
Manufacturer
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
No recall is listed for NaturVet GrassSaver Wafers Supplement.
Source: FDA animal food recall listings back to January 2019 · Checked daily, last on Oct 16, 2026
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Frequently Asked Questions
Has NaturVet ever been recalled?
We have no recalls on record for NaturVet. We track the FDA's animal food recall listings back to January 2019 and publish every pet food recall automatically. A filing that isn't pet food may not appear here.
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 listings. Last verified dates reflect our most recent data check. We track the FDA's animal food recall listings back to January 2019 and publish every pet food recall automatically. A filing that isn't pet food may not appear here.
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