Can horses make their own B Vitamins?
Horses do manufacture their own B Vitamins (except Nicain) in the hindgut through microbial fermentation of fibre. However, some horses will benefit from supplemental B Vitamins in the diet for example horses on low forage diets, horses in high stress enviornments, and those with digestive upsets.
What is the difference between B Vitamin Complex and Brewer's Yeast?
B-Vitamin Complex provides set levels of B-vitamins, in higher quantities than our recommended serving of Brewer’s Yeast, so if your only aim is to feed B-vitamins this would be the better product.