Hi, I’m Tom, your dog microbiome adviser.
I’ll help you find the most suitable solution for your dog.
I answer every question personally.
The person behind the siteTom TomčoDog microbiome adviser
Spajky a Arty
I do all of this because of them. I have been running canicross with my dogs for 11 years. In sport we often dealt with tiredness after a race, slower recovery and sometimes an upset tummy.


I wanted to understand what is going on inside, too.
I started looking for ways to improve things for my dogs and discovered care built on a scientific foundation. Its main pillar is the gut microbiome: billions of bacteria linked to digestion, immunity and skin. Our story began in the tummy, where I believe everything starts.
What I learn, I explain here in plain language and with sources, and when science does not know something, I say so.
Why I work with Trevalo
I only recommend what I have been able to see up close.
Four things about Trevalo convinced me.
Czech manufacturer
Both the tests and the courses are made in Brno.
Their own laboratories
Tests are analysed and courses are produced in their own laboratories.
A course based on your dog’s own test
One manufacturer makes both the test and the tailored course, from the sample to the finished product.
A scientist behind the products
Trevalo products are backed by RNDr. Petr Ryšávka, Ph.D., a geneticist, molecular biologist and probiotics expert.
I visited the laboratory in person and saw how the samples are tested.
The care I recommend
Not sure what to choose? Write to me, or try our short 3-question helper.
Gut microbiome test
Find out the make-up of your dog’s microbiome. A basis for a conversation with your vet.
More info My recommendationTest + TREVALO CARE synbiotic course
First the test, then a three-month course chosen according to the result.
More info Every dayTREVALO BALANCE
A universal everyday choice, also suitable as care after the course.
More info NewTREVALO VITAL
Colostrum, a canine probiotic strain, fibre and micronutrients in one tub.
More info NewTREVALO DIGEST
Four sources of fibre and a canine probiotic strain for a more sensitive tummy, with no dairy ingredients.
More infoTell me about your dog
Tell me what is bothering your dog and I will advise you on where it makes sense to start.
- I answer every question personally.
- I will explain your test result for free.
- When needed, I will send you to a vet.
I am not a vet. I help with choosing care and with explaining the test result, and a diagnosis is always made by a vet.
I am a distributor of Trevalo products. The site is not an online shop: you buy products directly from the manufacturer through our link.