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DOG FIT by PreThis® VITAMIN B komplex

Vitamin B complex for dogs » Our needs-based & vegan nerve protection.

Supports the normal function of nerves, organs, heart, muscles, and the back, as well as metabolism and stimulus conduction of the urinary tract.

VITAMIN B dog nervous system

DOG FIT dogA well-supplied nervous system is crucial for a dog's quality of life – it controls movement sequences, coordination, muscle functions and much more. Our vegan Vitamin B complex supplements daily feeding with micronutrients valued in veterinary naturopathy to support normal function of the back, nerves, heart, organs, muscles and stimulus conduction to the urinary tract as well as metabolic processes.

DOG FIT by PreThis® VITAMIN B komplex is free from artificial additives and ideal for dogs with increased needs – e.g. in old age, after veterinary care or when the spine and intervertebral discs are stressed.

Targeted supplementation for nerves, stimulus conduction and vitality

DOG FIT dogThe B-vitamins contained support physiological processes that are particularly in demand in everyday life and stressful situations:

  • For normal nerve function in the area of the urinary tract: A targeted supplement can be useful, e.g. for special requirements of the urinary tract or stimulus conduction.
  • For challenges in the back area: Supports the normal function of nerves and stimulus conduction – e.g. for dogs with increased stress on elastic structures such as the spine or adjacent connections.
  • For the coordination of nerves and muscles: Accompanies physiological stimulus processing – e.g. in case of changed movement patterns or muscle tension.
  • In situations of increased sensitivity to stimuli: In case of loud noises (New Year's Eve), training situations, dog encounters, stress or restlessness – a targeted supply of B-vitamins can be useful.
  • For the vagus nerve: Supports the central "resting nerve" in signal transmission for relaxation and its normal nerve function.
  • For normal cognitive functions: Attention, learning ability and mental alertness in everyday life or during challenges in old age.
  • To support normal energy balance: Supplements feeding in case of fatigue or slowed movement behavior – for a more active dog life.
  • To supplement the diet: In special phases of life or in case of nutritional increased demand for nerve-relevant B-vitamins.
  • For skin, mucous membranes and coat: Supports the normal function of the skin and contributes to normal mucous membranes and a well-groomed coat.
  • For normal energy and iron metabolism: Accompanies needs-based energy production and supports your dog's vitality.
  • For normal heart function: Contributes to the maintenance of the physiological function of the heart.
  • For cell division and amino acid synthesis: Supports natural cellular processes and normal protein synthesis in the organism.
  • In case of oxidative stress: Provides important micronutrients that contribute to normal cell function.

Scientific B-complex study

VITAMIN B » The power team of all 8 B-vitamins

These micronutrients contribute to the normal function of nerves, energy balance, cell health, skin and cognitive performance – even in special phases with changed requirements.

Our complex contains the complete spectrum of B-vitamins: B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B7 (biotin), B9 (folic acid) and the high-quality B12 (methylcobalamin).

VITAMIN B » Competence for your dog's vitality

Developed in collaboration with experienced veterinary practitioners, veterinarians and nutritionists, our vegan Vitamin B complex offers needs-based and high-quality support for dogs. We rely on pure ingredients without unnecessary additives and the expertise from over 20 years of experience.

Dog with normal nerve function

Recognizing signs of a B-vitamin undersupply

An undersupply of B-vitamins occurs more often than many think and often shows itself gradually. Since B-vitamins work closely together in the body, deficits rarely occur in isolation. Attention should be paid to the following signals:

  • Vitamin B1 (thiamine): Can manifest through reduced appetite, changed eating behavior (e.g. eating feces), jumpiness or uncertainty in movement.
  • Vitamin B2 (riboflavin) & B3 (niacin): An increased need often manifests in flaky skin, dull coat, sensitive lips or irregular digestion.
  • Vitamin B5 (pantothenic acid): Important for pigmentation – an undersupply can favor graying and reduce coat quality.
  • Vitamin B6 (pyridoxine): If this vitamin is lacking, it can lead to nervousness, general weakness and reduced resilience.
  • Vitamin B7 (biotin): The classic for skin & hair. Signs of a need are brittle hair, hair loss, itching or skin irritation.
  • Vitamin B12 (methylcobalamin): Essential for the nerves. A deficit often leads to listlessness, rapid fatigue and muscle weakness.

Why regular supply is so important:
Since B-vitamins are water-soluble, the body can hardly store them (except for B12). They must therefore be supplied regularly through food. Especially with commercial food, a needs-based amount cannot always be guaranteed. With our DOG FIT by PreThis® VITAMIN B complex, supply gaps can be safely closed and a stable nervous system as well as pure vitality can be supported according to needs.

All advantages at a glance summarized:

  • For the nervous system & stimulus conduction:
    • Supplements feeding to support the normal function of nerves and stimulus conduction
    • Contributes to coordinated communication between nerves, muscles and organs
    • For coordinated movement control – e.g. in the legs
  • For cognitive processes & vitality:
    • Supports normal cognitive function and attention
    • Supplements the diet for increased vitality needs – e.g. during activity or stress
  • For more inner balance:
    • Contributes to balanced behavior and general well-being
    • Particularly suitable in situations with increased sensitivity to stimuli (e.g. New Year's Eve, dog school)
  • For special requirements on the musculoskeletal system:
    • Supports the normal function of the back, pelvic region and adjacent structures
    • Supplements feeding for special requirements in the area of the spine – e.g. for dogs with a long back
    • For dogs with increased need for nutrients to support stimulus transmission
  • For heart, cell metabolism & hormone balance:
    • Contributes to normal heart function
    • Supports physiological processes of the hormone balance
    • Supplements feeding with micronutrients that contribute to cell function
  • For skin, mucous membranes & oxidative stress:
    • Supports the maintenance of normal skin and mucous membrane functions
    • Provides antioxidant vitamins involved in physiological protective processes
  • For balanced Vitamin B levels:
    • Covers the need for essential B-vitamins in dogs with additional requirements
    • Supplements the daily diet in special life situations
  • For dogs in sensitive phases:
    • Supports the normal function of the nervous system – e.g. in case of increased need in the area of the urinary tract
    • For accompaniment in restless life situations or with sensitive stimulus processing

Individual support for your dog!

Your dog is unique and has individual needs. Should you have questions about specific aspects in connection with the product, please do not hesitate to contact us directly. Preferably by email to info@dog-fit.com, describing the exact circumstances briefly. We are happy to assist you with our expertise and help you find the best possible support for your dog.

Our promise

Free from additivesDOG FIT by PreThis® stands for quality and purity. Our products are non-GMO and contain no gluten, fructose, yeast, soy, grains, sugar, artificial flavors, flavor enhancers or preservatives.

Our manufacturing process is particularly gentle and subject to extensive quality controls. DOG FIT by PreThis® meets even the highest requirements and is produced with the greatest care – for dogs who deserve only the best.

Customer reviews of "DOG FIT by PreThis® VITAMIN B"

How does your dog like it?

Share your experiences with other customers.

(43 comments)

Review Form

Customer Reviews

Daniela

10 April 2026

A real ray of hope

Horner's syndrome really had us worried. Thanks to the vitamin B complex, he's almost back to his old self after just a few weeks. His eye looks wide awake again, and the tremors have subsided. Top quality—worth every penny!

— Automatic translation via DeepL

Gast

19 December 2025

Newly Ordered

He's been around for a long time, and his blood work is good.

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Sabine Winkler

28 October 2025

Very satisfied

I've been using the vitamin B complex for over 3 months now and am very satisfied. His coat looks great, his skin has calmed down, and his movements seem more confident overall. My dog is a 6-year-old Rottweiler-German Shepherd mix from an animal shelter.

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Sandra

29 August 2025

Super

Give it to my 3 malinois 1 year 9 years and 13 years

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Birgit

30 July 2025

Satisfied all round

Since we have been regularly mixing vitamin B into our dog Emma's food, her incontinence has disappeared and her general condition is much better. Above all, she has better nerves.

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Daniela Kulz

15 July 2025

Vitamin B

Vitamin B

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Andrea P.

3 May 2025

I am super satisfied :-)

I have been giving my 15.5 year old dog the vitamin B capsules for quite a while now (mixing the contents with quark) and despite her age she is still lively and is still learning new things :-) Thank you!

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Monika F.

29 August 2024

Westie (13)

My Westie is 13, and with Dog Fit he seems more mobile again, eats well and is simply fitter overall. I am thrilled!

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Paul Schröder

2 January 2024

Simply great. Incontinence as if blown away.

Our Labrador female dog had to be sterilized when she was 2 years old. She is now 5 years old. From one day to the next, she suddenly wet her bed while she was sleeping without realizing it. Our vet suspected that she had a bladder infection. She was then given antibiotics for 1.5 weeks, but they didn't work. Then I came across this site and ordered the vitamin B complex. She has now been taking the tablets for 10 days and has been completely dry since the first tablet. I would order it again and again.

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Daniela Greulich

22 September 2023

Vitamin B for urine puddles

Our senior male dog is now over 12 years old and there are always streams and puddles in the house. Not a problem in itself, there are cloths for cleaning up. But as he was visibly very uncomfortable, I searched the Internet and found this product. Within a very short time, it had almost completely disappeared and he was much more in control. His nervous tremors on his hind legs have also decreased considerably and he seems fitter and more focused. I have just reordered it.

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Dosage instructions

  • The preparation was developed according to needs and is optimally dosed up to 10 kg (small), 10 kg - 25 kg (medium) and from 25 kg (large) weight.
  • Dogs receive one small, medium or large capsule daily, depending on their body weight.
  • Very small dogs up to 1.5 kg body weight receive one small capsule every 2 days.
  • Very large dogs with a body weight of 50 kg or more receive 2 large capsules daily.

Store out of the reach of small children, in a dry place and away from light, as B vitamins are sensitive to light.

Ingredients

Supplementary food for dogs

DOG FIT by PreThis® VITAMIN B is vegan, non-GMO, free of Animal testing, gluten, fructose, yeast, soy, palm oil, magnesium stearate, grains, sugar, artificial flavors and preservatives.

DOG FIT by PreThis® VITAMIN B

Contents small per capsule
Vitamin B3 (niacin) 5.63 mg
Vitamin B5 (Calcium D-Pantothenate) 2.00 mg
Vitamin B6 (pyridoxine hydrochloride) 0.70 mg
Vitamin B2 (riboflavin)0.46 mg
Vitamin B1 (Thiamine Hydrochloride) 0.52 mg
Vitamin B9 (folic acid) 0.076 mg
Vitamin B7 (Biotin) 0.02 mg
Vitamin B12 (Methylcobalamin)0.0004 mg
Capsule shell cellulose
Filler acacia fiber


Analytical components:

Crude fiber 11.1%, crude protein 2.7%, crude ash 0.9 %, crude fat 0.2%

Per pack 60 capsules = 19.5 g

Contents medium per capsule
Vitamin B3 (niacin) 28.13 mg
Vitamin B5 (Calcium D-Pantothenate) 9.58 mg
Vitamin B6 (pyridoxine hydrochloride)3.50 mg
Vitamin B2 (riboflavin)2.50 mg
Vitamin B1 (Thiamine Hydrochloride) 2.62 mg
Vitamin B9 (folic acid)0.35 mg
Vitamin B7 (Biotin)0.10 mg
Vitamin B12 (Methylcobalamin)0.0016 mg
Capsule shell cellulose
Filler acacia fiber


Analytical components:

Crude fiber 14.9%, crude protein 5.3%, crude ash 2.6 %, crude fat 0.2%

Per pack 60 capsules = 20.5 g

Contents large per capsule
Vitamin B3 (niacin)56.25 mg
Vitamin B5 (Calcium D-Pantothenate) 19.17 mg
Vitamin B6 (pyridoxine hydrochloride) 7.00 mg
Vitamin B2 (riboflavin)5.24 mg
Vitamin B1 (Thiamine Hydrochloride)5.00 mg
Vitamin B9 (folic acid) 0.70 mg
Vitamin B7 (Biotin)0.20 mg
Vitamin B12 (Methylcobalamin) 0.0033 mg
Capsule shell cellulose
Filler acacia fiber


Analytical components:

Crude protein 18.1%, crude fiber 8.5%, crude ash 4.7 % crude fat 0.2%

Per pack 60 capsules = 20.5 g

Please store dry, cool (6-25 °C), protected from light and out of the reach of small children.

Note: Our responsibility towards wildlife and the environment is our top priority. That's why we make careful decisions when selecting our ingredients. We never lose sight of the principle of sustainability. We strive to use ingredients that are not only healthy, but also have as little impact on the environment as possible.

We take our commitment to environmental friendliness one step further. It is a clear priority for us to ensure that none of our ingredients come from protected animal species. This commitment reflects our deep-rooted respect for wildlife and is consistent with our commitment to ethical and environmentally conscious manufacturing.

Questions

Which dogs is VITAMIN B intended for?

For adult dogs of any size and breed. We especially have in mind dogs that are to be supported in their daily feeding with the normal function of nerves and metabolism. VITAMIN B is a complementary feed for daily feeding and no substitute for a balanced diet. If your bitch is pregnant or nursing, or your dog is currently under veterinary treatment, please discuss supplementary feeding with your veterinary practice first. You will find the right size for your dog's weight under “Dosage instructions”.

Is VITAMIN B well tolerated?

VITAMIN B is generally very well tolerated – we select our ingredients for high quality and a natural composition. As with any natural product, an individual dog may still react sensitively to a single ingredient. If you notice signs of intolerance, pause the supplement and get in touch with us – we are happy to help. If your dog has pre-existing conditions or receives a special diet or medication, please also talk to your veterinary practice.

When can I expect to see first results?

This varies from dog to dog and depends on your dog's individual needs. As a rule, feed VITAMIN B for at least six weeks, in some cases longer. Natural formulations need time to unfold their supporting properties – regular feeding matters more than a high single dose.

How long does one pack of VITAMIN B last?

One pack contains 60 capsules and therefore lasts around two months with daily feeding. If your dog receives an extra capsule according to the dosage recommendation, it will last correspondingly less. For continuous feeding we offer value packs.

My dog won't eat the capsule – what can I do?

That can almost always be solved. Many dogs accept the capsule more readily when it is embedded in something soft – a spoonful of wet food, quark or a piece of liver sausage usually does the trick. If your dog doesn't like the capsule at all, you can also open it and mix the contents into the food. What matters most is regularity: an occasionally missed dose is no problem, but feeding should not be interrupted for long.

What makes VITAMIN B special?
Our DOG FIT by PreThis® VITAMIN B complex is a needs-based and purely vegan supplement, specially developed for the health and well-being of dogs. It is free from any unwanted additives, making it a safe and healthy choice.

The vitamin B complex plays a crucial role in supporting nerve regeneration and contributes to the normal function of the nervous system – particularly in dogs prone to restlessness. In addition, it serves as a general strengthening of the nervous system and contributes to improved health in dogs.

Its vegan formula makes it an ideal choice for all dogs, including those with sensitivities or special dietary needs. Rely on the DOG FIT by PreThis® VITAMIN B complex for an all-round vital and happy four-legged friend who shines from the inside out and is full of joy of life.
Can I also give VITAMIN B preventively?
Yes, the use of the DOG FIT by PreThis® VITAMIN B complex is also highly recommended as a prophylactic measure. The valuable B vitamins play a central role in numerous metabolic processes and are particularly indispensable for a healthy nervous system.

Prophylactic supplementary feeding of the VITAMIN B complex can help maintain and strengthen dogs' nerve health. This is particularly important because a well-functioning nervous system is the basis for vitality, well-being and a high quality of life for four-legged friends.

Regular supplementary feeding can support nerve health in the long term and accompany your dog in his active and happy life.

For further questions – such as combining several supplements, medication or the 5 + 1 deal – see our general FAQ.

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Your benefits

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Focus on purity

DOG FIT by PreThis® stands for particularly high product purity and a natural composition. Our supplemental foods are free from genetic engineering and artificial additives. We consciously avoid gluten, fructose, yeast, sugar, grains, soy, artificial flavors, flavor enhancers, and preservatives. The result: a clear recipe – for your dog's well-being.

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Easy to use

DOG FIT by PreThis® products are particularly easy to integrate into everyday life. Depending on the product, they come as capsules, powder, or granules and can be mixed directly into food or hidden in a treat. Capsules can be easily opened when needed – the contents are then mixed with the food without any loss of effectiveness. For targeted supplementation without hassle – day after day

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For sensitive dogs

DOG FIT by PreThis® offers targeted solutions for dogs with sensitive digestion or intolerances. Many products are specially formulated to be particularly gentle – free from artificial additives and typical allergens. The carefully selected ingredients ensure high tolerance. However, in cases of known intolerances, we always recommend checking the label.
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Valuable micronutrients

DOG FIT by PreThis® combines carefully selected micronutrients in a carefully calibrated dosage – developed specifically for the nutritional needs of dogs. This supports a balanced diet without overdose or deficiencies. The natural ingredients are based on actual needs and sensibly and effectively supplement daily feeding.

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sugar-free
gluten-free
gmo-free

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Very satisfied and recommended!

My 14-year-old Maltese has been having difficulty controlling his bladder lately, probably due to his age and possibly also due to age-related changes in his musculoskeletal system. After about eight weeks of using the Vitamin B Complex, his situation had stabilized significantly – he seems more balanced overall and is coping better with everyday life. My second dog also seems more active and vital, and even his skin looks healthier again. I'm convinced by the product and will definitely continue using it.

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Petti

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Thank you very much!

The Vitamin B Complex has noticeably helped our Nico. Before taking it, he had great difficulty coordinating his hind legs properly, which was very stressful for us. Now he can move much better again – he's even able to do small jumps again! It's wonderful to see how he's showing more joy in life and is curiously exploring his surroundings again. We are grateful that he is feeling better now and will continue to give him the product.

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Monika A.

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