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.
However, the important takeaway here is this: The biggest factor in losing muscle is the lack of physical activity, which makes exercise a crucial component when it comes to preventing muscle loss. If you want to figure out the real deal, enter your information into a calculator to learn how many calories you really need for your age and activity level.

Healthy fats such as avocados, coconut oil, extra virgin olive oil, avocado oil, and ghee have a number of benefits. These include reducing the risk of heart attack, coronary artery disease, high cholesterol, high blood pressure, cancer, diabetes, and metabolic syndrome.23,24,25,26,27 They can keep you satisfied longer, reducing the risk of overeating and snacking. Healthy eating doesn’t mean deprivation! Healthy fats taste good and improve your brain health, and so may help you feel emotionally satisfied, lowering the risk of emotional eating.28


When you were young, you probably didn't spend too much time thinking about preparing your body for the future. In your teens and twenties, you're in peak condition and it's the perfect time to start exercising. Cut to 20 years later and, if you didn't start exercising, you probably wish you had since there's something we all start to experience in our 40's—weight gain.
Erin Palinski-Wade, RD and nutrition and diabetes expert, adds that you can use fruits and veggies to help exercise portion control, too. "If you aim to fill half your plate with vegetables, it can help you to reduce the portion size of the other foods while feeling just as satisfied," she explains. "And since vegetables provide few calories, this strategy can reduce your overall calorie intake at each meal, helping to promote weight loss.

Good stress management techniques and routine exercise will have positive effects on your sleep, but you may need to take additional steps to help you sleep better. For example, be proactive about going to bed and waking up at the same time most days, and allow yourself 30 minutes to unwind and disconnect from your digital devices at night. Eating a plant-forward, mostly whole foods diet that’s low in added sugar helps, too.
Difficulty sleeping can be a symptom of menopause, so it's not uncommon for women in their 40s to struggle with getting enough sleep. Unfortunately, this can also cause weight gain. "When you get less than seven hours of restful sleep, metabolic changes occur that can make it significantly harder to lose weight," says Palinksi-Wade. "The appetite hormone ghrelin is increased while leptin (which controls hunger cues) is reduced, triggering an increased desire to eat, especially for foods rich in fat and sugar. Insulin resistance increases, which can trigger the body to store fat."
In your forties, your body may have an increasingly difficult time digesting carbohydrates, which may lead to weight gain. Living a stressful life can lead to an increase in the stress-hormone called cortisol, which can make you more prone to gaining belly fat. Estrogen loss may also lead to fat redistribution in your body and cause belly fat gain.11
THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.
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