WASHINGTON, D.C. -- One in seven Americans say they personally use cannabidiol- (CBD-) based products, which have proliferated since last year's passage of a federal law legalizing this hemp form of cannabis. Younger Americans and those in the Western U.S. Although CBD was legalized federally last December, the FDA is still researching it, and some states are still restricting it. While 14% of U.S. CBD products, Gallup's June 19-July 12 polling found that 50% do not use them and 35% are not at all familiar with them. Twenty percent of adults younger than 30 say they use CBD, but usage and familiarity decrease progressively in older age groups. Just 8% of those aged 65 and older say they use CBD, and 49% are not familiar with it. This same pattern is evident in Gallup data on marijuana usage, with younger adults reporting higher prevalence of marijuana use than is true for older adults. Regionally, 21% of those in the Western U.S.