GrassSaver Chewable Tablets Supplement
Verified Jun 9, 2026
This is a chewable supplement for dogs designed to be given daily alongside their regular diet. It supplies DL-methionine, a vitamin B blend, yucca, and cranberry fiber, aiming to influence urine characteristics and support urinary tract and kidney health. It is formulated specifically for dogs and should not be used in cats.
This is a targeted urinary supplement rather than a complete diet, using DL-methionine along with B vitamins, yucca, and cranberry fiber to modify urine characteristics and support urinary tract health in dogs. For otherwise healthy dogs with normal kidney and liver function, it can be a reasonable option when used under guidance from your veterinarian. Because methionine affects urine pH and sulfur metabolism, it’s important that pets on this product are monitored, especially if they have any underlying urinary, kidney, or liver issues.
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
KibbleLab Review
Strengths
- Contains DL-methionine, an amino acid commonly used in veterinary medicine to acidify urine when appropriate, which is consistent with its intended purpose.
- Includes a blend of B vitamins, which are involved in normal metabolism and urinary health, and cranberry fiber, often used to support urinary tract function.
- Yucca schidigera is included, which may help reduce stool or urine odor in some dogs.
- Chewable tablet format can make daily dosing easier for many owners and dogs.
Considerations
- DL-methionine changes urine pH; in some dogs this may not be desirable and can potentially worsen certain types of urinary crystals or stones, so veterinary guidance is recommended before long-term use.
- This is a supplement only and does not replace a complete and balanced dog food; it should always be given with a regular diet and not on an empty stomach.
- Dogs with existing kidney, liver, or significant urinary tract disease should not receive this type of product without explicit supervision from a veterinarian.
- Label notes it is for dogs only and should not be given to cats, as cats have different urinary and metabolic needs.
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
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.
03
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.
04
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.
05
Pyridoxine Hydrochloride
Pyridoxine hydrochloride is the common supplemental form of vitamin B6 used in pet foods to ensure adequate levels for amino acid metabolism, neurotransmitter synthesis and red blood cell production in both dogs and cats. It is water‑soluble and generally safe when included at recommended levels to meet nutritional guidelines, but excessive supplementation can lead to neurological problems, so formulations should follow established dietary requirements.
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 Chewable Tablets 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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