Folic acid
Vitamin B9 for Dogs
Supports normal cellular metabolism and gastrointestinal function in dogs

Folic acid for dogs: why it shows up in two different products
Folic acid, vitamin B9, does its clearest work in tissues that renew themselves constantly, which is why it appears in both Essential's energy metabolism group and Prebiotic's skin barrier nutrients, rather than sitting in just one formula.
Why fast-renewing tissue needs it most
Folic acid is essential for DNA synthesis and cell turnover, and that matters most in tissues that replace their cells quickly: the gut lining and the skin barrier both fall into that category. Research on dogs with chronic enteropathy has linked folate concentrations to clinical signs and lab markers of the condition, underlining how closely gut health tracks with folate status.
Skin follows the same underlying logic. A separate line of research on the gut-skin axis in canine atopic dermatitis reflects how connected these two fast-renewing tissues are, even though they sit at opposite ends of the body.
Why it sits in two products, not one
Essential includes folic acid as part of general daily metabolism, while Prebiotic includes a separate, gut-and-skin-specific amount. That's not duplication: it reflects that folate's cell-renewal role is relevant to overall metabolic health and to the specific demands of gut and skin tissue.
Research notes
References for further reading
- Ullal, T.V., Marks, S.L., Huebner, S.N., Taylor, S.L. and Shelley, C.D. (2023) ‘Association of folate concentrations with clinical signs and laboratory markers of chronic enteropathy in dogs’, Journal of Veterinary Internal Medicine, 37(2), pp. 455–464
- Thomsen, M., Künstner, A., Wohlers, I., Olbrich, M., Lenfers, T., Osumi, T., Shimazaki, Y., Nishifuji, K., Ibrahim, S.M., Watson, A., Busch, H. and Hirose, M. (2023) ‘A comprehensive analysis of gut and skin microbiota in canine atopic dermatitis in Shiba Inu dogs’, Microbiome, 11, 232
Questions
Vitamin B9 FAQ
EVERY DOG AGES DIFFERENTLY.
Take the longevity assessment to find where your dog stands and which formula fits your dog. Takes 2 minutes.
Start →





