In the good ol’ days, making a serious New Year’s resolution meant buying new running sneakers or subscribing to “Self” magazine. But now would-be dieters, marathoners and detox gurus have Pinterest -- and when it comes to keeping track of New Year’s resolutions, they’re pinning it up.

The visual bookmarking site is currently seeing more health-related searches than it has since it launched in March 2010, said Lisa Israel, a spokeswoman for Pinterest.

Users began searching health and fitness pins en masse on Christmas Eve, Israel said -- perhaps beginning to regret their rounds of holiday parties.

By New Year’s Day, Pinteresters could scarcely log into the site without spotting a workout plan like Minka Kelly’s grueling 45-minute treadmill workout, currently Pinterest’s most popular fitness pin, according to Israel.

The service is capitalizing on all these users (p)interested in finding new workout regimens and diet plans by maintaining a channel of health and fitness posts. And its “30 Days of Pinspiration” project collected holiday ideas from marquee users. Dr. Oz and the U.S. Marines both contributed -- though the Marines’ workouts, as you can imagine, are not for the faint of heart.

We’ve also rounded up some of the most popular New Year’s health and fitness pins on our Pinterest page. Happy pinning -- or spinning, as the case may be.