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Feline Thyroid Wellness Support Supplement
Only Natural Pet

Feline Thyroid Wellness Support Supplement

Verified Jun 10, 2026

Cat · Supplement All Breed Sizes

This is a turkey-flavored chewable supplement for cats designed to support thyroid and overall endocrine health. It combines L‑carnitine with several herbal ingredients such as bugleweed, lemon balm, motherwort, and eleuthero. It’s intended as an add-on to your cat’s regular diet, not a complete food on its own.

Over-the-counter No recalls
Official product page
KibbleLab Score
7.2 out of 10

This supplement is formulated specifically with thyroid and general wellness in mind, using L‑carnitine plus a blend of herbs commonly used for endocrine and stress support. It may be an option some owners consider alongside veterinary care for cats with thyroid-related concerns. Because it’s a supplement rather than a complete diet and uses multiple herbal components, it’s especially important to use it under the guidance of your veterinarian, particularly if your cat is on thyroid medication or has other health issues.

The KibbleLab Score (1–10) is assessed from publicly available product data. Our evaluation is science-based, not marketing-based.

Ingredient composition Quality, beneficial additions, absence of artificial colors/flavors
Nutritional profile Protein, fat, fiber evaluated for stated life stage and food type
AAFCO compliance Complete and balanced certification; feeding trials valued higher
Health considerations Sensitivity profile, DCM risk, processing method
9.0 – 10 Top Pick
8.0 – 8.9 Strong Choice
7.0 – 7.9 Solid Option
6.0 – 6.9 Worth a Conversation
Below 6 Not Recommended

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

Health Benefits
Thyroid Support Immune Support Stress Relief
Suitable For
All Breed Sizes
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Nutritional Perspective

KibbleLab Review

Strengths

  • Targeted formula featuring L‑carnitine, which is often used in cats with high thyroid activity to help support muscle and weight maintenance.
  • Includes a blend of herbs (bugleweed, lemon balm, motherwort, eleuthero) traditionally used for endocrine, stress, and cardiovascular support, which may complement other therapies.
  • Chewable, turkey-flavored tablet can be easier to give than liquids or capsules for many cats.

Considerations

  • This is not a complete or balanced food, so it should only be used as a supplement in addition to a regular, nutritionally complete cat diet.
  • The herbal blend (bugleweed, lemon balm, motherwort, eleuthero) can interact with prescription medications or existing conditions; cats with thyroid disease should only receive this under direct veterinary supervision.
  • Contains turkey flavor, which may not be suitable for cats with poultry allergies or sensitivities.
Scored using the rubric of an NAVC Certified Pet Nutrition Coach (PNCC). This is informational, not veterinary advice.

Full Ingredient List

L-Carnitine L-Tartrate 250 mg, Bugleweed (aerial parts) 80 mg, Lemon Balm (leaf) 80 mg, Motherwort (aerial parts) 80 mg, Eleuthero (root) 30 mg, Magnesium Stearate, Microcrystalline Cellulose, Natural Turkey Flavor.

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
L-Carnitine L-Tartrate
L‑Carnitine L‑tartrate is a stable, supplemental form of L‑carnitine added to pet foods to support fat metabolism by shuttling long‑chain fatty acids into mitochondria, commonly used to help maintain lean body mass, support energy production, and assist weight‑management or cardiac health in dogs and cats. It is generally safe at recommended doses but can cause gastrointestinal upset in some animals and should be used under veterinary guidance—especially for animals with medical conditions or when determining appropriate species‑ and size‑specific dosing.
02
Bugleweed
Bugleweed (Lycopus spp.) is an herbal botanical occasionally found in supplements or functional pet products rather than as a nutrient source, traditionally used in folk medicine for mild calming effects or to influence thyroid-related symptoms and providing negligible protein, fat, or calories for dogs and cats. Because it can affect thyroid function, may interact with prescription medications, and lacks robust safety and efficacy data in companion animals, bugleweed should be used only under veterinary guidance and avoided in pregnant, nursing, or thyroid- or cardiac-medicated pets.
03
Lemon Balm
Lemon balm is a culinary herb used in pet foods and supplements as a botanical additive for mild calming and digestive support, supplying aromatic essential oils and antioxidant compounds rather than calories or standard nutrients. It is generally considered safe in small amounts for dogs and cats and may help reduce mild anxiety or gastrointestinal upset, but evidence is limited and large doses or use alongside sedatives or certain medications can cause excessive drowsiness or interactions, so consult your veterinarian before regular use.
04
Motherwort
Motherwort is an herbal botanical occasionally used in pet supplements or functional foods for its traditional calming and cardiovascular-supporting properties rather than as a source of calories or protein, so it contributes bioactive compounds rather than meaningful nutritional value. Evidence in dogs and cats is limited, and motherwort can cause gastrointestinal upset, interact with anticoagulant or sedative medications, and may stimulate the uterus (contraindicated in pregnant animals), so use should be guided by a veterinarian.
05
Eleuthero
Eleuthero (Eleutherococcus senticosus), often called Siberian ginseng, is used in pet supplements and functional foods as a botanical adaptogen intended to support energy, stress resilience and general immune function rather than as a macronutrient or vitamin. Clinical evidence in dogs and cats is limited, so benefits are anecdotal for many animals and the herb can cause gastrointestinal upset, interact with medications, or be inappropriate for pregnant, lactating, hypertensive or immunocompromised pets—use only under veterinary guidance.


Product Details & Brand

Product Specs

Breed size All Breed Sizes
Texture Whole Pieces
Food type Supplement

Brand

Only Natural Pet

Only Natural Pet offers a comprehensive range of natural pet foods, supplements, treats, and wellness products focused on holistic and sustainable pet care. The brand appeals to environmentally conscious pet owners seeking high-quality, minimally processed nutrition alternatives for their pets.

Visit Only Natural Pet
Price tier $$$$

Manufacturer

Company name Only Natural Pet, LLC
Parent company PetSmart, LLC
Founded 2004
Headquarters Boulder, Colorado, USA
Manufacturing type Co Packer
Manufacturing country United States
Manufacturing region Colorado
Manufacturing oversight

Products are manufactured in the United States under strict quality assurance protocols, including adherence to FDA and AAFCO standards. The company emphasizes sustainability, renewable energy use, and third-party testing for ingredient safety.

Manufacturing details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing.

Recall History

No recalls on record

Only Natural Pet Feline Thyroid Wellness Support Supplement has no recalls since 2014.

Source: FDA Pet Food Recall Database · Monitored daily

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KibbleLab food report
SOLID PICK.
7.2 /10 Grade B
Feline Thyroid Wellness Support Supplement
Only Natural Pet · kibblelab.com

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Frequently Asked Questions

Has Only Natural Pet ever been recalled?

We have no recalls on record for Only Natural Pet. 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.

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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.