If you wish to browse our range in person, we are open by appointment.
Alternatively, we offer pick up and delivery services, Go to the ‘Find Us’ page for more information.

VetPro Vitamin B1 – Thiamine


Pick-up available at 68 Akatarawa Road, Reikorangi, Waikanae.

Usually ready in 24 hours.

Appointments to view all products are available.

Get in touch to book now!

SKU: N/A Categories: , ,



B Vitamins are produced in horses hindgut. However, when horses are on a high carbohydrate and/or low fibre diet, or stressed by – travel – performance pressure – change of environment – or by illness, b vitamin production can be impaired. Research has shown that B Vitamins, particularly Thiamine, can be insufficiently made in the gut and therefore lower in supply and so many horses may need supplementation, especially if access to good pasture is not available.

Signs of low Thiamine can be distracted, spooky behaviour, edgy and difficult manner. Often this type of behaviour is attributed to low magnesium levels, even though a natural diet with a small feed usually provides sufficient magnesium. Many feeds and additives contain Organic or chelated Magnesium, which is not water soluble, and so it can be overdosed to a toxic level with negative effects to the horse. Magnesium oxide is water soluble but is inorganic but less popular (there is a trend for organic), and so safer for the horse.

Supplementing 1000mg per day of B1 can bring the levels up to normal and help to calm the horse. It can be given when needed, for example days prior to travel and competitions etc, but also on a regular daily basis if pasture is not of the best standard. For a particular intensive situation, the dose can be doubled. As the physical size of the dose of a vitamin is not practical to measure, it is mixed with a carrier called maltodextrin so a useful scoop can be used. It also makes the product more palatable to a horse.

If a horse is in full performance mode and hard training then the option of supplementing the other B vitamins is more useful and can be given with a course of Vetpro Blud-Boost, or as a one-off boost then B-Boost can provide for that day.


Recommended Daily Dose:
Average Horse 500Kg – 15gm – one level scoop
Average Pony 14HH – 7-8gm – half scoop
The product is soluble so can be dissolved in water for easy administration.

Additional information


2kg, 500g, 1kg