No One Should Be Surprised by How Martha Stewart Prepped For Her SI Swimsuit Shoot

Martha Stewart is 81 years old and just made history as the oldest cover model to grace Sports Illustrated's Swimsuit Issue, on newsstands May 18. "I don't think about age very much, but I thought that this is kind of historic," Stewart told SI.

Alongside the other cover models, Brooks Nader, Megan Fox, and Kim Petras, Stewart glowed in photos from the spread, shot in the Dominican Republic by photographer Ruven Afanador. How did she prep for the shoot? Truthfully, no one should be surprised. The answer: Pilates.

"I'm still going to Pilates every other day because it's so great," Stewart told "Today" in an interview about the cover. In addition to working out during the time leading up to her shoot, she also admitted to limiting bread and pasta but otherwise lived her life as usual. "I live a clean life anyway — good diet, good exercise and healthy skin care and all that," she told "Today."

As it turns out, Stewart is quite the wellness girlie. Just a little over a month ago, in an April 5 Instagram post, she shared some insight into her wellness routine, which includes drinking green juices and — yep — doing Pilates several times a week.

In the Instagram post, Stewart shared a glowy salon selfie, and in the comment section, fans demanded to know her secrets. "What the f are you doing? How are you looking this amazing," one user asked. And Stewart took the time to respond to many of the comments on her post. "Eating very well Pilates three x week. Horseback ride at least once a week. No smoking. Little drinking Green juice Daily," she wrote in response.

Pilates is one of the hottest workouts of late thanks to all the benefits it offers, with plenty of other celebs including Kylie Jenner, Scarlett Johansson, Kerry Washington, and Keke Palmer all swearing by the practice. It's a great low-impact workout option for all ages and abilities, as it's great at building total body and core strength, flexibility and mobility, and for injury recovery and prevention.

Instagrammers also pleaded for Stewart's green juice recipe, and although she didn't share it on this post, her website has a recipe for "Martha's Favorite Green Juice" that involves juicing one green pear, two stalks of celery, two English cucumbers, a bunch of parsley, a one-inch piece of fresh ginger, and two orange wedges (with the rind left on).

She demonstrated a similar green juice recipe on TikTok in mid-March in response to Tom Brady, who was attempting to make his own Martha-worthy blend. This one adds fresh spinach, mint, and some additional citrus, and she says it "gives me the jolt of energy I'm looking for early in the morning."

A longtime equestrian, Stewart's continued passion for horseback riding is a great example of how active hobbies that bring you joy fit perfectly into a wellness routine — especially when it's something that gets you outdoors, which comes with a whole host of health benefits, according to the US Forest Service.

And in addition to adding all these good things into her wellness routine, Stewart admits to "drinking little" (alcohol, we venture to guess) and "not smoking" (despite her previous collabs with marijuana aficionado Snoop Dogg). The latest research confirms that alcohol is pretty much only bad news for your health, so limiting it is smart. Though unlike many other celebs who are going totally dry, we wouldn't expect Stewart to totally forgo a glass of wine or vodka martini.

In all, Stewart's wellness routine sounds solid and just about as iconic as the woman herself — and this new SI cover. The only thing we can't figure out? Why she's not all over wellness TikTok.