If you have questions about whether Cataplex® B fits into your dog’s health plan, we are always happy to help you choose the right support for your pet.
Cataplex® B for Dogs by Standard Process: Nerves, Energy & Heart Care
The following information is a summary and review based on Dr. Candy's professional experience and recommendations. Any summary or statement has not been provided nor influenced by the manufacturer.
When I am supporting a dog’s nervous system, energy levels, or overall resilience, B vitamins often play a key role. One supplement I use frequently in practice is Cataplex® B for Dogs by Standard Process. It is a whole food based formula that supports nervous system health while also helping with metabolism, heart health, and digestion.
This is not a synthetic B-complex. It is a food-derived supplement that the body recognizes and uses efficiently, which is why it fits so well into a holistic care plan.

What Is Cataplex® B for Dogs?
Cataplex® B is a nutritional supplement designed to support the nervous system, metabolic function, and cardiovascular health. It provides essential B vitamins in a food-based form, along with organ and plant ingredients that support absorption and utilization.
B vitamins are water-soluble nutrients. That means dogs need regular intake to maintain healthy nerve signaling, energy production, and organ function.
Why I Use Cataplex® B in Dogs
I reach for Cataplex® B when a dog needs gentle but meaningful nutritional support. This can include nervous system stress, low energy, digestive concerns, or early cardiovascular changes.
What makes this formula stand out is how it supports multiple systems at once without overstimulating the body.
Key Benefits I See Most Often
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Supports nervous system health and nerve signaling
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Helps maintain healthy energy and metabolism
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Supports heart and circulation health
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Aids digestion and liver function
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Supports immune system resilience
How Cataplex® B Supports the Body
Nervous System Support
B vitamins like thiamin, niacin, and vitamin B6 are essential for nerve health. They support nerve tissue, signal transmission, and overall neurological function.
I commonly use this supplement in dogs with:
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Neuropathy or nerve weakness
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Degenerative myelopathy support plans
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Back injuries such as IVDD
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Anxiety related to nervous system stress
Energy and Metabolism
B vitamins help convert food into usable energy. Thiamin plays a major role in carbohydrate metabolism, which helps dogs maintain steady energy levels throughout the day.
This can be helpful for dogs that seem sluggish, slow to recover from activity, or under metabolic stress.
Heart and Circulation Support
Niacin and other B vitamins support healthy circulation and help maintain homocysteine levels already within a normal range. This matters because elevated homocysteine can stress blood vessels.
I often include Cataplex® B for dogs with:
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Low-grade heart murmurs
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Early cardiovascular changes
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Aging-related circulation concerns
Digestive and Liver Support
Choline supports liver function and fat metabolism. The organ-based ingredients also help the body absorb and utilize nutrients more efficiently, rather than letting them pass through unused.

Ingredients That Make Cataplex® B Different
This formula combines targeted nutrients with whole food ingredients that support absorption and balance.
Nutrient Breakdown Per 2 Tablets
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Thiamin: 1 mg
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Niacin: 20 mg
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Vitamin B6: 1 mg
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Choline: 10 mg
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Proprietary blend: 545 mg
Why These Ingredients Matter
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Bovine liver: Rich in natural B vitamins, iron, and vitamin A
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Nutritional yeast: A concentrated whole food source of B vitamins
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Porcine duodenum: Supports nutrient absorption so vitamins are actually used
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Organic beet root: Supports liver function and digestion
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Defatted wheat germ: Provides vitamin E for skin and coat health
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Organic carrot and sweet potato: Provide antioxidants and beta-carotene
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Rice bran: Supports digestion and adds additional B vitamins
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Bovine adrenal: Supports stress response and hormone balance
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Sunflower lecithin, vitamin E, vitamin C: Support nervous system and antioxidant balance
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Manganese lactate: Supports connective tissue, metabolism, and joint integrity
This product does contain wheat, which is important to note for dogs with known wheat sensitivities.
Dosage and How I Recommend Giving It
General Dosing Guidelines
| Dog Size | Daily Amount |
|---|---|
| 1 to 20 lbs | 2 tablets daily |
| 21 to 50 lbs | 3 tablets daily |
| 51+ lbs | 4 tablets daily |
If you are unsure where to start, I always recommend starting low and increasing gradually.
How to Give Cataplex® B
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Tablets can be given directly or mixed into food
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Most dogs eat them willingly because of the liver content
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If your dog is picky, mix with a small amount of wet food
Important safety note:
Because dogs love the taste, keep the bottle stored securely. If a dog eats too many tablets, loose stool or diarrhea is the most common side effect and usually resolves within 48 hours. Make sure your dog stays hydrated and contact your veterinarian if symptoms persist.

Possible Side Effects
Cataplex® B is generally very well tolerated.
Some dogs may experience:
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Loose stool or diarrhea when first starting
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Mild digestive upset if introduced too quickly
If this happens, reduce the dose by half for one week, then slowly increase.
Allergic reactions are rare but possible with any supplement.
Frequently Asked Questions
What is Cataplex® B for Dogs by Standard Process?
Cataplex® B is a whole food based supplement that supports nervous system health, energy metabolism, and cardiovascular function in dogs.
How does Cataplex® B support the nervous system?
It provides essential B vitamins that help maintain nerve tissue, support signal transmission, and assist the body’s natural repair processes.
How should I give Cataplex® B to my dog?
It is given orally based on your dog’s size. Tablets can be offered directly or mixed with food.
Are side effects common?
Side effects are uncommon. Some dogs may experience loose stool when starting, which usually resolves with dose adjustment.
Can my dog take Cataplex® B with medications?
In most cases, yes. Because it is food-based, it is compatible with most medications and supplements. If your dog is undergoing chemotherapy or enrolled in a clinical trial, consult your supervising veterinarian first.

