Can You Donate Blood If You Smoke? Cannabis, Nicotine, and More Most Commonly Googled Questions About Blood Donation Answered by the Experts, Part 2 Stanford Blood Center CBD Cannabis and voluntary blood donations: what is the rule? Justbob Smoking (or vaping) doesn't affect your ability to donate blood. Help us bust this myth by sharing our post. Can You Donate Blood If You Are A Smoker? Teen Vaping: What Parents Can Do Children's Hospital Colorado