Chip Sammons and Allie, his 11 year old rescue. The rain is coming down hard as I drive up to the humble storefront of Holistic Pet Center in Oregon City. Chip Sammons greets me and takes me to his office. His desk is wedged between shelves of veterinary, nutrition, dog, cat, biology, animal physiology and anatomy books, and stacks of file folders containing what I soon find out are thousands of articles of research studies on pet health. On the wall are pictures of his family and himself with many...