What Are Glandular Supplements?

Glandulars are supplements made from freeze-dried organs and glands of animals—typically bovine (cow) or porcine (pig) sources. The idea behind glandular therapy is the concept of “like supports like,” a principle found in both Traditional Chinese Veterinary Medicine and early Western naturopathic approaches.

In simple terms: feeding liver supports liver health, feeding adrenal glands supports adrenal function, and so on.

How Glandulars Work

These supplements provide:

  • Organ-specific peptides and enzymes to nourish and support the corresponding organ in your dog

  • Naturally occurring vitamins, minerals, and cofactors found in the tissues

  • Bioavailable nutrients that are more easily absorbed than synthetic versions

  • Energetic support aligned with TCVM principles (e.g., warming/cooling properties)

They may be especially helpful when a dog has a deficiency, organ stress, or genetic weakness in a specific system.

Common Glandulars and Their Uses

  • Liver Glandular
    Supports detoxification, bile production, digestion, and recovery from medications or liver damage.
    Often used in dogs with elevated liver enzymes, toxin exposure, or chronic inflammation.

  • Kidney Glandular
    Helps support renal tissue, hydration balance, and electrolyte regulation.
    Beneficial in aging dogs or those with early kidney stress (e.g., before bloodwork shows pathology).

  • Pancreas Glandular
    Used for dogs with pancreatic insufficiency or poor digestion.
    Often combined with digestive enzymes.

  • Adrenal Glandular
    Supports dogs under chronic stress, with suspected adrenal dysfunction (Cushing’s or Addison’s tendencies), or those needing help regulating cortisol.

  • Thyroid Glandular
    Supports metabolism and thyroid health, though it should never be used without thyroid testing due to the risk of over-supplementation.

  • Heart Glandular
    May benefit dogs with cardiovascular concerns or breeds prone to Dilated Cardiomyopathy (DCM).
    Contains naturally occurring CoQ10, taurine, and other heart-supportive compounds.

  • Brain Glandular
    Helps support cognitive function in senior dogs and may aid puppies with developmental issues.
    Sometimes used in seizure dogs for neuro-nourishment.

  • Spleen, Thymus, and Lymph Glandulars
    Immune-modulating; help support lymphatic detox, red and white blood cell production, and general immune defense.

When to Use Glandulars

Consider glandular support when:

  • Your dog has a known organ-related condition

  • You want to prevent degeneration in a genetically vulnerable breed (e.g., kidney support in senior Shih Tzus)

  • Bloodwork or symptoms suggest functional stress (e.g., fatigue, poor digestion, muscle loss)

  • You're feeding a homemade diet that may lack specific organ variety

  • You're supporting a detox, recovery, or regeneration protocol

How to Choose a Glandular Supplement

  • Choose a single-source or blend based on your dog’s needs (e.g., just liver vs. a full multi-gland formula).

  • Prefer grass-fed, hormone-free sources.

  • Look for freeze-dried or desiccated (not heat-treated) to preserve nutrients.

  • Avoid added synthetic vitamins, fillers, or artificial flavors.

  • Choose bovine over porcine if your dog has pork sensitivity.

Some trusted brands are available through our affiliate products list here.

Do Glandulars Replace Organs in the Diet?

Not entirely — but can be helpful if:

  • Your dog won’t eat raw organs or your don’t have access to organs (RAW diets)

  • You're feeding cooked meals (which may degrade organ nutrients)

  • You’re targeting a specific health issue

  • You’re rotating through various support supplements seasonally

Wrap Up

Glandulars are a powerful tool in your wellness toolbox, offering nutritional, functional, and energetic support. When used correctly, they can help restore balance and vitality—especially when paired with a fresh, species-appropriate diet and lifestyle.

If you're not sure where to start or need help choosing the right blend, reach out in our forum or schedule a consult.

Statements in this blog have not been evaluated by the FDA. Educational content only. Not intended to diagnose, treat, cure, or prevent any disease.