Earlier this month, Michigan governor Gretchen Whitmer signed legislation making her state the second in the nation (after California, in 2019) to legalize veterinarian consultations with pet owners “on the use of marihuana or industrial hemp” in medications. That green light to discuss (though not recommend) CBD medications is a big deal, says Dr. Trina Hazzah, a Los Angeles veterinary oncologist and medical-cannabis activist. Reason: Until now, veterinarians have had to watch their step when…