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Thiamine

Vitamin B1 for Dogs

Supports normal energy metabolism and nervous system function in dogs

Steady energy metabolism
Essential
Vitamin B1 chemical structure

Vitamin B1 for dogs: a small vitamin that degrades faster than you'd expect

Thiamine's job is straightforward, energy metabolism and nervous-system function, but a shortfall is more plausible than it sounds, since the vitamin degrades with heat and storage time, which is why Essential includes a set amount rather than assuming diet alone is enough.

A required cofactor, not a nice-to-have

Vitamin B1 (thiamine) is a required cofactor for converting food into usable energy, and it supports normal nervous-system function alongside that metabolic role. A veterinary review of thiamine deficiency in dogs and cats covers how a shortfall develops and how it can affect appetite and coordination once it progresses beyond a minor gap.

Why a well-fed dog can still fall short

It's less common in dogs on a balanced, well-stored diet, but thiamine degrades over time and with heat, which is exactly the kind of gradual, easy-to-miss shortfall the veterinary literature describes. That's part of why Essential includes a measured amount per serving as part of the daily B-complex, rather than assuming diet alone is sufficient.

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Biological reserve across a dog's life phases, with this dog's score plotted against the baselineAssessment result panel scoring weight, joint health, nervous system, gut health and overall vitality

From the journal

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