People who eat plenty of fruits and vegetables may have a somewhat lower risk of COVID-19 than those with unhealthy diets, a new study suggests. Of more than 590,000 adults surveyed, researchers found that the quarter with the most plant-rich diets had a 9% lower risk of developing COVID-19 than the quarter with the least-healthy…  read on >  read on >

U.S. approval of the Alzheimer’s drug Aduhelm is already mired in controversy. Now a new study finds that most Alzheimer’s patients could not have taken part in clinical trials that led to the green light. In June, the U.S. Food and Drug Administration gave accelerated approval to Aduhelm (aducanumab) for treating patients with mild cognitive…  read on >  read on >

COVID-19 vaccine booster shots might not be needed for most people, according to a large international review. The review — conducted by a team that included scientists from the World Health Organization and the U.S. Food and Drug Administration — concluded that current vaccines are effective enough against severe COVID-19, even from the Delta variant,…  read on >  read on >

Older adults who regularly eat foods like fish, nuts and olive oil may have less iron accumulation in their brains, as well as sharper memories, a small study suggests. The brain requires a certain level of iron to function normally, but the aging brain can accumulate an excess amount. And that excess iron has been…  read on >  read on >

Very few privately insured young children get recommended dental fluoride treatments at health wellness visits, even though insurance typically covers them, a new study finds. “Medical providers are not required to do this; it’s like a mammogram,” said lead author Kimberley Geissler, an associate professor of health policy and management at the University of Massachusetts…  read on >  read on >