Brewer's Yeast

Brewer’s yeast is a nutrient-rich yeast traditionally produced from Saccharomyces cerevisiae. It naturally contains B vitamins, protein, amino acids and trace minerals, making it a useful whole-food ingredient for energy metabolism, skin and coat health, and general nutritional support.

It is commonly included in both human and pet supplements because of its broad nutrient profile and natural palatability.

B Vitamins and Energy Metabolism

Brewer’s yeast is particularly valued for its naturally occurring B vitamins.

These nutrients help the body convert food into usable energy and support normal nervous system function, red blood cell production and everyday metabolism.

Because B vitamins work together across many metabolic pathways, brewer’s yeast provides a useful whole-food source rather than relying on a single isolated vitamin.

Protein and Amino Acids

Brewer’s yeast also contains protein and a range of amino acids used for tissue maintenance, enzyme production and normal cellular function.

While it is not usually consumed as a primary protein source, it can contribute additional amino acids alongside a balanced diet.

Skin, Hair and Coat Support

Its combination of B vitamins, amino acids and trace nutrients makes brewer’s yeast particularly relevant to skin, hair and coat health.

Biotin and other B vitamins support normal skin and keratin production, while protein provides building blocks for hair and coat structure.

This is one reason brewer’s yeast is commonly found in pet supplements designed to support coat condition and general vitality.

Nutritional Support for Pets

Brewer’s yeast is widely used in supplements for dogs and cats because it combines nutrients with a flavour many animals find appealing.

It can support skin and coat condition, energy metabolism, appetite and general wellbeing, while also helping improve the palatability of tablets and powders.

For pets with known yeast sensitivities or dietary restrictions, it is worth checking whether brewer’s yeast is appropriate before use.

Brewer’s Yeast in O2B Products

At O2B Healthy, brewer’s yeast is used in O2B Whey Lite and as a nutrient-rich source of B vitamins, protein and amino acids. It is also included in O2B K9+ Joints, O2B Feline+ Joints, O2B Feline+ Calm and O2B K9+ Octane, where it contributes nutritional support for energy metabolism, skin and coat condition, general vitality and overall wellbeing.