Ryan Yamka, PhD, is founder and an independent consultant with Luna Science and Nutrition, and co-founder of the Guardian Pet Food Co. He is board certified in companion animal nutrition by the American College of Animal Sciences and a fellow with the American College of Nutrition. Yamka calls on his extensive background in pet nutrition, and multiple years developing, formulating and launching dog and cat foods as a senior executive with leading pet food companies, to educate consumers, retailers and veterinarians.