Please see this link about ingredient sourcing: http://www.wysong.net/pet-health-and-nutrition/ingredient-sourcing.php
. We do not have any recalls on protein ingredients.
Any risk of contracting BSE from cattle could possibly be linked to ingesting neurological tissue from a diseased animal (i.e. brain, spinal cord etc..). Bovine colostrum is sourced from milk of healthy cattle. The risk of any disease from this ingredient is unlikely.
For the best health, Dr. Wysong recommends eating in variety (which minimizes any risk from any single food source), and to follow the Optimal Health Program™
Consider signing up for our free program, The 100 Pet Health Truths
. The 100 Pet Health Truths will equip you to become a discerning and educated pet owner. We have condensed Dr. Wysong's 35 years of health wisdom into 100 short and easy messages enhanced with fun graphics and videos. You will also receive coupons totaling $100 for free Wysong products interspersed throughout the program.