How does your dog like it?
Share your experiences with other customers.
For nerves, drive, balance, and well-being in dogs.
Our needs-based and vegan nerve protection supports the normal function of nerves, organs, heart, muscles, and the back, as well as metabolism and the stimulus conduction of the urinary tract. Whether it is age, stress, or physical strain, sometimes dogs simply need extra support. The vegan VITAMIN B complex for dogs was developed specifically for this: for a targeted supply of valuable B vitamins, as valued in veterinary naturopathy.
It is particularly suitable for dogs with an increased need in the area of nerves, intervertebral discs, or the bladder, for example in cases of signs of aging, sensitive stimulus conduction, or in phases of high strain, as well as noise, restlessness, or nervousness (vagus nerve).
Skin, coat, mucous membranes, and energy balance are also supported in their normal function by the micronutrients contained. For more balance and quality of life, day after day.
Delivery status: Shipping with DHL
Approx. 6-10 working days (within the EU)
€21.95
instead of €27.95 RRP
A 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.
The B-vitamins contained support physiological processes that are particularly in demand in everyday life and stressful situations:
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).
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.

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:
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.
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.
DOG 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.
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 DeepLGast
19 December 2025
Newly Ordered
He's been around for a long time, and his blood work is good.
— Automatic translation via DeepLSabine 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.
— Automatic translation via DeepLSandra
29 August 2025
Super
Give it to my 3 malinois 1 year 9 years and 13 years
— Automatic translation via DeepLBirgit
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.
— Automatic translation via DeepLDaniela Kulz
15 July 2025
Vitamin B
Vitamin B
— Automatic translation via DeepLAndrea 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!
— Automatic translation via DeepLMonika 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!
— Automatic translation via DeepLPaul 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.
— Automatic translation via DeepLDaniela 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.
— Automatic translation via DeepLStore out of the reach of small children, in a dry place and away from light, as B vitamins are sensitive to light.
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.
| 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.
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”.
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.
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.
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.
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.
For further questions – such as combining several supplements, medication or the 5 + 1 deal – see our general FAQ.
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.
Automatically translated
Petti
04.02.2024
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.
Automatically translated
Monika A.
30.01.2021