Gluten and dairy are two of the biggest culprits behind the ever-increasing rates of chronic illness, autoimmune diseases, and obesity. Gluten has been linked to increased inflammation, leaky gut syndrome, sleep disturbances, mood fluctuations, and skin issues.21,22 Consuming dairy can lead to inflammation, gut issues, and increased risk factors for a number of health problems. Banishing both gluten and dairy is one of the number one actions I recommend for you to take control of your health and your weight. To learn more read my book, The Autoimmune Solution.
Non-starchy vegetables, particularly greens, are rich in nutrients, minerals, antioxidants, and fiber, and quite low in calories. They can nourish your body while helping you lose weight. Greens and veggies are low in calories, yet thanks to all the fiber, they can keep you full and satisfied longer. They may also prevent sugar spikes and sugar cravings, lowering your risk of reaching for unhealthy snacks or sugary desserts. If you are looking for an easy way to get 14 veggies in one serving, my Organic Greens powder is a simple solution.
Gluten and dairy are two of the biggest culprits behind the ever-increasing rates of chronic illness, autoimmune diseases, and obesity. Gluten has been linked to increased inflammation, leaky gut syndrome, sleep disturbances, mood fluctuations, and skin issues.21,22 Consuming dairy can lead to inflammation, gut issues, and increased risk factors for a number of health problems. Banishing both gluten and dairy is one of the number one actions I recommend for you to take control of your health and your weight. To learn more read my book, The Autoimmune Solution.

Remember how we said that the more muscle you have on your body, the better your metabolism works? Having more muscle increases your resting metabolic rate (RMR). This helps you burn more calories at rest—which is what you want if you’re aiming for weight loss after 40. So if you’ve been avoiding those weight machines or dumbbells, now’s the time to dedicate yourself to strength training. It is never too late to start strength training! If it is new to you, take advantage of any free personal training sessions that might be offered when you join a local gym or health club. This is often to familiarize you with the equipment and the layout of the facility, but can be a useful tool to get you started on a routine. Of course, if you have the finances to hire a trainer for a few sessions that’s another way to go.
As you reach mid-life, the pressures pile up. Just think of the typical stressors, like caring for kids and aging parents, facing financial burdens and dealing with the demands of a job. When you’re experiencing stress, your body responds by releasing the hormone cortisol. If your stress diminishes, your hormone levels return to normal, but if you’re experiencing ongoing stress from “adulting,” cortisol levels will remain high. This can set off a series of biological events that may lead to an increased appetite with more cravings and a propensity to store fat in your belly.
To jumpstart your weight loss, the biggest focus should be to develop habits that will help you build or maintain your muscle mass. "The most effective way that women over 40 can boost their metabolism is by building muscle through weight-lifting and resistance training," says Dr. Peterson (more on that to come). But nutrition and sleep habits also play a role here.
“Has something happened — a change in relationship or job? Has that affected the times that you’re eating, how and what you’re eating, and who you’re eating with? Those changes in eating nutritionally can affect your weight,” Weiner said. “If you used to eat with other people, you maybe had more vegetables. Alone, you may be eating less healthy foods.”

Remember how we said that the more muscle you have on your body, the better your metabolism works? Having more muscle increases your resting metabolic rate (RMR). This helps you burn more calories at rest—which is what you want if you’re aiming for weight loss after 40. So if you’ve been avoiding those weight machines or dumbbells, now’s the time to dedicate yourself to strength training. It is never too late to start strength training! If it is new to you, take advantage of any free personal training sessions that might be offered when you join a local gym or health club. This is often to familiarize you with the equipment and the layout of the facility, but can be a useful tool to get you started on a routine. Of course, if you have the finances to hire a trainer for a few sessions that’s another way to go.
Let's get down to business: If you're having a hard time achieving your weight-loss goals after 40, these 16 expert-backed tips for losing weight in your 40s are totally doable and can nudge your body in the right direction again. (And, tbh, they're wise for anyone looking to move the needle to keep in mind—not just those over 40.) You'll be on your way to a stronger, healthier you in no time.
Once you hit 40, losing weight can feel like a lost cause. Dr. Robert Kushner, director of the Center for Lifestyle Medicine at Northwestern Medicine Center in Chicago and author of “Six Factors to Fit: Weight Loss that Works for You,” told TODAY that the total amount of calories burned every day diminishes for most people with each passing decade.
3. Keep a food journal or use an app to track what you eat. As we get older, our metabolisms naturally slow down.  That means you need less food.  If you’re still eating as much as you did in your 30’s, you’ve probably had to buy a whole new wardrobe or 2 by now.  Apps like “My Fitness Pal” or “Lose It” help making weight loss goals easier by keeping you on track.  Or you can go old school and write everything down then look up the calories.  Not all calories are created equal, but one is for sure, taking in more than you burn leads to more body fat.

Soda and other sugary soft drinks are all empty calories that may result in weight gain and health problems. Don’t be fooled—diet soda is not better. It’s full of artificial sweeteners, preservatives, and often caffeine that can disrupt your health.31,32 It can interfere with your hunger hormones, increase your appetite, and lead to weight gain.33,34 Herbal teas and green juices are a good option.
Oxidative stress occurs when the balance between free radicals in the body and our ability to fight against them is uneven, with free radicals prevailing. Free radicals can cause disease and there is an association with an increased risk of formation of free radicals as we age. That's why after a certain age, building up our defenses (through having lots of antioxidants in plants) can help reduce this imbalance and stack the cards in our defense system instead.
Guys often wonder whether a dip in testosterone is at the root of their weight gain, says Dr. Stanford. "When men develop overweight and obesity, they tend to have a drop in testosterone that leads to a drop in energy and more retention of adipose tissue,” she says. The excess adipose tissue drives testosterone down. But taking testosterone isn’t usually the answer. “That’s not the underlying problem. Once we normalize the weight, the testosterone normalizes," she explains.
Amy Myers, MD is a two-time New York Times bestselling author and an internationally acclaimed functional medicine physician. Dr. Myers specializes in empowering those with autoimmune, thyroid, and digestive issues to reverse their conditions and take back their health. In addition, she is a wife, mother, and the successful founder and CEO of Amy Myers MD®.

"One of the reasons that it's difficult to lose weight in your 40s is that you are beginning to lose muscle mass, so the composition of your body tissue changes," explains Keri Peterson, MD, Women's Health advisor. "Having higher muscle mass raises your metabolism, so your body burns more calories." So when you're dealing with the opposite—less muscle mass—that means a slower metabolism. Argh.
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