Next best thing to Mom Puppies grow healthiest and best on mother's milk. Science has decoded the immunity and growth secrets in canine milk to reveal over 1,000 bioactive properties. Puppy Gold recreates canine milk to promote immunity, stronger joints and lean growth."Swiss Army Knife of Nutrition" Contains canine milk's bioactive proteins, micellar casein, colostrum, glucosamine and more to give a giant head start in life. We even include canine milk's awesome immune factors, including lactoferrin. Puppy Gold helps produce not just healthier puppies, but healthier, longer living adults. For Mom, too! The same nutrients that help puppies after birth help them grow inside mom. Feeding Puppy Gold to mothers helps produce healthier, more robust puppies and a stronger mom. Mothers look great during pregnancy & nursing and snap back almost fast. No more runts! Puppy Gold supplies every pup the pick of the litter's share of immune, joint and growth nutrients. Because they get their fair share, even small puppies can catch up and express their true (formerly hidden) genetic potential. No more runts!