Jennifer follows these regimens to maintain her weight.

Jennifer Aniston launched to global superstardom thanks to her role as Rachel Green on Friends and decades later, she remains a beauty and wellness icon who always looks amazing whether she’s showing off a new LBD on the red carpet or a beachwear on the set of Murder Mystery 2. So how does the 53-year-old stay in such great shape? CelebWell spoke with experts who reveal why her diet and exercise regime works.

Read on to see 5 ways Jennifer Aniston 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!The Morning Show star has been known to do intermittent fasting. “I do intermittent fasting, so there’s no food in the morning. I noticed a big difference in going without solid food for 16 hours,” she told the U.K. outlet Radio Times.

Dr. Pana Ninan, PharmD, BS Functional Medicine Practitioner and Pharmacist states, “Intermittent Fasting (IF) or time-restricted eating is a great way to allow the gut time to heal and rest from the digestion phase but also helps you lose visceral fat. An example of time-restricted eating is eating for an 8 hour window of the day and allowing your body the time to use its own stores of energy (fat) for 16 hours. You must still consume a normal amount of healthy whole food calories for the benefits. If you restrict caloric intake too much your body will actually decrease its metabolic rate.”

One of Aniston’s trainers, Leyon Azubuike, co-owner of Gloveworx, told Women’s Health that he has the A-lister eat whole foods and healthy fats. “I love avocados, coconut oil, salmon, fish oil… anything that’s a good form of fat is great,” he said. For carbs and protein, Leyon added it’s different for everyone based on their lifestyle. “For me, I stick to 1.7 grams of carbs and 2 grams of protein per my kilo weight to support muscle-building.” Dr. Chad Larson, NMD, DC, CCN, CSCS, Advisor, and Consultant on the Clinical Consulting Team for Cyrex Laboratories explains, “When foods are processed, the natural balance of the food is altered.

Our brains are maniacal accountants of energy (calories). The flavor enhancers of most processed foods trick the brain into eating more of the food because the intense flavor confuses the caloric accountant in the brain, making you eat more of that food to try to balance the account. ‘Bet you can’t eat just one!’ is a very factual slogan by Lay’s. If you eat more processed food, you will secrete more insulin to deal with the increased blood sugar demands, and the higher the insulin, the greater the fat storage.”