The COVID-19 quarantine changed everyday life for Americans, including many aspects of our diet, health and exercise regimens. One change that has not received enough scrutiny is that during the pandemic, millions of Americans turned to dietary supplements. In 2020, sales of dietary supplements were 14.5% higher than the previous year — the largest growth spurt since 1997, according to the Nutrition Business Journal’s 2021 report on supplement sales. Today, nearly three-quarters of U.S. consumers take regular doses of vitamins, fish oil, herbs and similar products, the Council for Responsible …