Despite overwhelming evidence of vaccines’ efficacy and safety, the anti-vaccine lobby is growing. Raw and grain-free diets with unproven health claims are also gaining popularity. Proponents of homeopathy continue to argue that the power of their treatments cannot be validated using traditional scientific methods.

Familiar territory, you may think. But we’re not talking about human healthcare. This is pet dogs and cats.

Recently, the aggressive promotion of alternative therapies for animal …