Natural Nutritional Value Diamond V ® is recognized throughout the animal nutrition field as an innovative, scientifically-motivated feed ingredient supplier. We've been providing natural, research-proven yeast culture products for more than 60 years and are constantly looking for practical solutions to the nutritional problems encountered in modern animal agriculture. Diamond V® provides yeast culture fermentation products and high-selenium yeast to animal feed companies, dairy milk producers, beef cattle feedlots and integrated swine and poultry operations world-wide.