I started using this product, and while it did take about 3 months, I am seeing a vast improvement in the lumps (fatty tumors) that my dog has. They are changing in density (becoming softer) and decreasing in size. I was happy that the formulation of this product was something that my picky pit bull would accept added to his food. I am very optimistic that continued use will continue to make improvements. Extremely happy with this product and company!