Molly Sims in Bathing Suit is "Out of Office"

Molly Sims is back in Mexico for the holidays! The 49-year-old supermodel shows off her incredibly toned body in a black cutout swimsuit in one of her latest social media posts. “The photos I’m attaching to my out of office email,” she captioned the series of Instagram snaps, taken from her annual vacation in Cabo San Lucas. How does she stay so fit as she approaches 50? Read on to see 5 ways Molly Sims stays in shape and the photos that prove they work—and to get beach-ready yourself, don't miss these essential 30 Best-Ever Celebrity Bathing Suit Photos!

1. Her Diet Is Extremely Healthy

Steve Granitz/FilmMagic

Molly doesn’t go on drastic diets. “It's more about living healthy and how you're feeling," she told Women's Health. "I truly, truly don't like the word 'diet.' I don't even like the scale. I use a pair of jeans; the jeans don't lie I can tell you that." However, she is very strict about what she puts in her body. "I tend to stay away from anything super sugary, like orange juice grapefruit juice, because it really spikes me," she added. "I try to stay away from dried fruits; it's ultimately full of sugar.” She also keeps gluten intake to a minimum. "It's not that I'm celiac; I just feel better when I have less of it," she said. "I don't care if I'm being rude to the rest of the table," she added to Shape, revealing that she always orders a salad first thing after sitting down at a table to keep herself from snacking on carbs. Then I'm not tempted to reach for that bread." Finally, she fuels up on healthy fats. “I would have never eaten an avocado 10 years ago if you paid me,” she told Health. “Like, are you joking? But now, instead of binging [and] not eating all day, eat it and then you won't binge.”

2. She Does Intermittent Fasting

Steve Granitz/FilmMagic

Molly is one of the many stars who swears by intermittent fasting. She starts the day with a smoothie with blueberries, almond milk, Vital Proteins protein, and greens at noon. She finishes her last meal of the day by 7 p.m.

3. She Likes Short But Intense Workouts

Shutterstock

Molly is a fan of HIIT style workouts, after years of being a cardio queen. “I used to be that girl who wouldn’t pick up the 2-lb weights at SoulCycle with the fear that I’d bulk. That mentality has shifted drastically,” she explained on her blog. "On good days, workout. On bad days, workout harder,” she captioned an Instagram post of her workout. “Today’s circuit is what I do when I just have 20 minutes with @lauralizkeller [Sims' personal trainer] to get it in and still break a sweat!” Usually she does 45 second intervals of the following, with the entire set repeated two to three times: jumping jacks, modified pushups, tricep dips, squat jumps, leg raises, burpees, ab lateral bend and hold. To make it harder, she uses ankle and wrist weights the entire time.

4. She Tries New Things

Molly is all about trying the latest and greatest health and fitness hacks. “Instagram isn’t real, let’s be honest. I probably had one of the hardest summers of my life, so thank you. I definitely put energy into trying to feel good and look good—I take care of myself. But I also have a lot of natural energy. For the most part, I’m a very positive person. I hate when celebrities say, ‘I just sleep a lot and drink a lot of water.’ You might, but you also do more,” she told New Beauty. “I am definitely one to keep my pulse on beauty and wellness treatments, and we’re learning about so many things right now, like peptides and spironolactone and metformin, herbs, mushrooms, and collagen. Look at where CBD was for the past 30 years and where it is now. Those little hippies were right. I do really try to follow through with these things. I’ll do intermittent fasting, I’ll do the Mediterranean diet, I’ll try it all. I really do try.”

5. She Prioritizes Self-care

“You have to” prioritize self-care, Molly told New Beauty. “You literally have to calendar your own self in. As we all know, guilt isn’t real; it’s just what we tell ourselves. The better you feel about yourself, the better person you are; the better mom you are. You feel more prepared to take on the world. Like yesterday, I was like, ‘I want to go to summer camp. I want to be fed, I want to sleep. Put in me summer camp, OK? Send me to mom summer camp.”