
We all had that friend in high school who could put away a mountain of pizza with a shrug and a declaration: “I have a really fast metabolism.” One of these days, even that friend will be singing a different tune. We all will — because of how age affects metabolism.
While research differs on the specifics, the general consensus is this:
“As your age goes up, your metabolism slows down,” says Hartford HealthCare bariatric specialist Joseph St. Pierre, DO.