A 2021 survey indicates that 80% of Americans are using supplements — a drastic increase from the 52% reported in a 2012 JAMA report, a statistic that had remained stable since 1999. While at that time the use of multivitamins had decreased somewhat, from 37 to 31 percent, the new survey indicates that 75% of supplement users now use multivitamins. The use of vitamin D and omega-3 supplements have continued to rise through all these years as well. In 2012 vitamin D use jumped from just over 5% to 19%, and fish oil supplements increased from just over 1% to 12%. In 2021, however, a whopping 52% of Americans were taking vitamin D, with zinc and vitamin C also being popular, at 22% and 40%, respectively. Some of the other more popular supplements are probiotics, omega-3, multivitamins, vitamin C, turmeric, calcium and magnesium. In all, Americans spent an estimated $21 …