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10 Ways To Actively Improve Your Metabolic Health, From A Nutrition PhD

In addition to celebrating the ways we can flex our metabolic performance, these insights reveal an exciting glimpse of our metabolic future. To be clear: These visions are not pipe dreams–they are current or near-term approaches that will enable us to be our metabolic best, in 2023 and beyond.

1.

Prioritize your muscles via protein, movement, and more.

Holding your muscles (and thus, strength and physical function) on a pedestal each day and throughout life is probably one of the best strategies for a long, healthy life. Sufficient (instead of adequate) protein intake is paramount in this endeavor, as is physical activity.

Ann Kulze, M.D., physician, nutrition expert, bestselling author of Eat Right For Life,and founder of The Healthy Living School(R) underscores these tried-and-true pillars of whole foods and regular movement. “Colorful plant-laden nutrition and daily physical activity that preserve muscle mass, fuel an active metabolism, and nurture long-term cardiometabolic health are foundational.”

Metabolic scientist and author of Why We Get Sick, Ben Bikman, Ph.D., makes sure that he and his family consume “a lot of protein and whatever fat that comes with it.” Meanwhile, he practices a relatively lower-carb approach.

When it comes to physical activity, all movement is welcome, but make sure to prioritize muscle-building/preserving activities. Alexis Cowan, Ph.D., Princeton-trained metabolic health expert and mindbodygreen podcast guest explains why building muscle mass via resistance training is so important. “Muscle is the primary site of metabolic heat production. The more muscle one has, the more energy will be dissipated as heat in the body.”

When I asked my friend Whitney Crouch, R.D.N., C.L.T., an integrative registered dietitian who helps women recover their health from thyroid, gut, and sex hormone-related issues, for her top metabolic health-promoting strategies, she had two. First, lift weights. Second, don’t demonize carbs, since the right kind of carbs are important.

More specifically, Crouch recommends that her clients “lift heavy weights two to three times per week.” She says to “start with weights that feel like you’re putting in effort (we’re not talking circa 1980 jazzercise!) and that you can still maintain good form while lifting. Then, work your way up over time with both the weight and frequency per week of your sessions, and work with a trainer if you’re new to the lifting world and your budget allows.”

She adds that “carbohydrates are not your enemy, and in the (very near future) it will be easy and accessible to determine individual needs.” We’re talking about healthy carbs (whole grains, fruits, vegetables), not the refined and processed counterparts. “The truth is, carbs are imperative to women’s hormonal balance1 (sex and thyroid hormones), and integral to energized workout sessions,” Crouch concludes.

2.

Nourish your gut by eating for the gut-metabolism axis.

As with most health considerations, your gut is an important cornerstone. When you eat for the gut-metabolism axis, your gut microbial ecosystem will flourish, and your metabolic health will thank you. Indeed, a healthy gut supports energy expenditure.

Megan Rossi, Ph.D., R.D., The Gut Health Doctor and author ofHow To Eat More Plants, explains that “when we’re fixating on calories, we completely forget about the gut microbiome and how important that is for regulating metabolism.”

In my opinion, life’s too short to count calories. Instead, I recommend that people enjoy an array of healthful foods and the wonderful nutrition they are extracting. My gut-metabolism recommendations are hydrate (water), plants (fiber), color (phytonutrients and other antioxidants), complemented with high-quality protein and healthy fats (especially omega-3’s and omega-9’s).

Cowan echoes this approach, recommending a diet with sufficient “protein to maintain and grow muscle, as well as polyphenols to mitigate [inflammatory processes] and optimize the gut microbiome.”

Melina Jampolis, M.D., physician nutrition specialist, podcast host, and bestselling author of Spice Up, Slim Downshares that, “nourishing our gut and maintaining proper energy balance by consuming more plants (fiber, but also herbs and spices), healthy fats, and quality protein, while remaining active throughout life are some powerful ways to reclaim our metabolic health.”

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3.

Give your cells (and body) a rest with fasting.

After dinner, metabolic researcher Bikman avoids eating for the rest of the night, since “the single greatest predictor of a good night’s sleep is if I go to bed on an empty stomach,” he shares.

Whether through intermittent or circadian fasting, corralling our food intake into a designated time window is known to promote metabolic health, and it’s an evidence-based longevity nutrition approach.

Working at the interface of metabolic and mental health, Harvard psychiatrist and author of Brain Energy, Chris Palmer, M.D., asserts that, “as long as the person is not underweight or malnourished, the single most powerful intervention to improve metabolism is to go without food for a period of time, or at least make your body think that it is.”

To put this into practice, he says “this can be accomplished through fasting, intermittent fasting, or a fasting-mimicking diet, such as the ketogenic diet. This forces your body to burn fat, increase autophagy, and increase the health and number of mitochondria in your cells. All of these can have a powerful and beneficial effect on metabolism. You can think of these processes as a ‘clean cycle’ and a ‘reboot’ for your cells.”

4.

Capitalize on personalized opportunities to balance hormones.

One of the most powerful ways I have found to get tuned into my metabolism is by partnering with integrative-minded healthcare practitioners who are experts in hormone health, like my personal endocrinologist Brittany Henderson, M.D.

Metabolism and metabolic health are directly impacted by numerous hormones (thyroid, sex, insulin, cortisol, etc.), so the opportunities for personalized and incremental gains on the metabolic optimization front are massive.

For certain hormones and labs, while some useful at-home kits do exist, they won’t include every lab you might need, much less the personalized expert interpretation and game plan. Again, you’ll want to partner with a healthcare provider specializing in hormonal health whenever possible.

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5.

Be mindful of toxins that disrupt metabolic health.

Some basal level of toxin exposure (think: plastics, pollution, etc.) in this modern world are unavoidable. These endocrine-disrupting chemicals (EDCs) can negatively impact our liver and metabolic health. Thankfully, our body has organs dedicated to 24/7 detoxification pathways, although we should help reduce the toxic burden whenever possible.

While BPA and glyphosate might come to mind, perhaps a less discussed toxin that’s incredibly pervasive is alcohol. Creator of Functional Sobriety and functional medicine nutritionist Brooke Scheller, D.C.N., C.N.S. shares that, “one of my key recommendations is cutting out (or cutting back) on alcohol use to support metabolic health. Alcohol consumption even a few times per week can affect our metabolism through gut changes, hormone imbalances, and even altering stress hormones2.”

She goes on to explain that, “While we’ve heard in the past to just drink clear beverages, lower calorie options, and even cut out the sugar in our alcoholic drinks,” that’s a futile approach since “the alcohol itself creates the imbalances that may impact how our body releases hormones, supports blood sugar regulation and contributes to inflammation3.”

6.

Leverage metabolism-energizing nutrition.

Depending on your dietary pattern, you can consider including key foods, beverages, and even functional plant bioactives that energize your metabolism at a cellular level, positively impacting your metabolic rate. Some of these include coffee, caffeine, chili peppers, veld grape, and EGCG from green tea.

Deshanie Rai, Ph.D., FACN, vice president of global scientific and regulatory affairs at OmniActive Health Technologiesshares: “The role of plant-based bioactives in increasing energy expenditure and metabolic rate have become an area of interest for both academic scientists and consumers and thereby effectively support weight wellness goals.”

To provide a practical example, just look at the chili (cayenne) pepper. Rai explains that, “we can lean into the intrinsic power of capsaicinoids from chili peppers, as a metabolism-energizing approach,” with science to boot: “There is ample evidence via human research showing that capsaicinoid ingestion can boost metabolic rate4, as well as emerging evidence for a role of capsaicinoids in supporting lipolysis5 (fat breakdown), satiety6, and positively influencing body composition7.”

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7.

Avoid excess adiposity, insulin resistance, and leptin resistance like the plague.

Excess adiposity, insulin resistance, and leptin resistance are a trio to avoid (or improve). Obesity triggers insulin resistance8. Insulin resistance makes us less metabolically flexible, making fat and calorie burning difficult. And insulin resistance feeds into leptin resistance, further exacerbating fat metabolism and regulation.

Family physician Bindiya Gandhi, M.D. previously explained that in working with her patients struggling with leptin resistance, “there’s one very important factor that’s often missing in the conversation about healthy, sustainable weight management and metabolism. Enter: hormones, namely, leptin.”

Leptin is an adipokine hormone9 produced by our fat cells, and is directly related to adiposity levels. When working properly, leptin tells our brain that we’re full from eating and that enough fat has been stored up. Wonky leptin spells metabolic disaster. Some key leptin resistance contributors are chronic stress and insulin resistance.

Cardiometabolic health expert Cate Shanahan, M.D. says, “if you want to do one thing in 2023 to optimize your metabolism, I would start with getting a blood test called HOMA-IR.” An equation that uses fasting blood glucose and insulin lab results, HOMA-IR is a way to estimate insulin resistance.

The fact is many of our country’s adults and youths have poor glucose control (i.e., blood sugar balance) due to insulin resistance. Cowan shares an incredibly practical and powerful tip to move the needle on insulin resistance: “Perhaps the simplest and most effective strategy at improving metabolic health is by moving your body after each meal. Even a 10 to 15 minute post-meal walk can dramatically increase glucose clearance into muscle.”

Cowan expounds on the mechanism: “Insulin resistance leads to impairment in muscle’s ability to take up glucose out of the circulation following carb-containing meals. Elevated blood sugar levels drive fatigue and brain fog acutely and inflammation and microvasculature damage over time.” That’s where exercise comes in, she says. “Exercise is vital for the reversal of insulin resistance and enhanced glucose clearance. Muscular contraction directly stimulates glucose uptake in an insulin-independent manner. A post-meal walk provides sufficient muscular contraction to clear a significant amount of excess glucose from the bloodstream.”

That’s why a particularly recent technology excites Cowan: continuous glucose monitors (CGMs). She shared that this innovation is “becoming available to the general population at a reasonable cost and with access to user-friendly app interfaces.” (If you’re looking for a product recommendation, a great CGM example would be Levels.)

“CGMs allow individuals to access critical information about their body’s unique response to different foods and meals, sleep quality, stress, and movement. Wearing a monitor for even a few short weeks can provide enough actionable insights to design a personalized diet and lifestyle protocol for an individual and give them rapid and sustainable results. Moreover, the CGM allows individuals to correlate changes to their blood glucose with their felt experiences within their bodies.”

When it comes to promoting insulin sensitivity, along with a plant- and fiber-rich dietary pattern and physical activity, I can’t forget to shout out my favorite nutrient, vitamin D! A growing body of clinical research links vitamin D sufficiency with cardiometabolic health benefits by promoting healthy levels of glucose and insulin.

The fact is that any improvement on the glucose and insulin front is critical. “Optimizing for glucose metabolism and insulin sensitivity is the game changer for longevity and protection against chronic diseases including cardiovascular disease, neurodegenerative diseases, diabetes, and cancer,” Cowan concludes.

8.

Activate brown fat (BAT).

When it comes to burning calories, there are a few key paths. One is burning calories from our nutrition to be transformed into ATP energy for all of the cells in our body to use. Then there’s physical activity that expends calories and brown adipose tissue (BAT)10, in which thermogenic energy dissipation occurs (i.e., heat is given off).

You see, brown fat is special fat. As Michael Lelah, Ph.D., chief science officer of NutriScience Innovations, explains, “BAT is actually an organ in your body responsible for the transfer of energy from food into heat. When BAT is activated, high amounts of fats and sugars are used up.”

And while that’s fascinating, the fact that we can use BAT to our advantage (literally, bringing the heat) really gets me jazzed. “There are different ways to activate BAT, including cold therapy and certain botanicals-grains of paradise is one such plant.”

If you’ve never heard of grains of paradise, this West African spice is in the ginger family. “High-quality extracts of this ancient spice contain several unique phytonutrients, including 6-paradol, known to activate BAT and activate thermogenesis. This is a targeted and plant-based way to help support your metabolism.”

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9.

Put out any inflammatory “fires” ASAP.

Inflammatory processes unchecked are like a fire that’s not put out in time. Inflammation chronicity is a major contributor to metabolic dysfunction and chronic disease.

To prioritize inflammation resolution and cardiometabolic health-promoting strategies, you’ll want to regularly incorporate marine omega-3 fats EPA and DHA, along with a colorful plant-laden nutrition approach for antioxidant power.

10.

Be selfish about stress management and sleep (quantity and quality).

Prolonged stress sows metabolic dysfunction via adrenal glands pumping out cortisol in an extended fight-or-flight mode. “You’re telling your body there’s a saber-toothed tiger behind you, and if you think that there’s a saber-toothed tiger behind you the majority of your day, you’re going to increase inflammatory markers,” Kien Vuu, M.D., previously explained on the mindbodygreen podcast.

Casey Kelley, M.D., ABOIM, functional physician and founder of Case Integrative Health, adds that cortisol “will give you a burst of energy while simultaneously pausing other bodily functions and slowing your metabolism.” For all these reasons, you’ll want to cut or limit stressors you can control. For the other stress-giving things you can’t affect, give yourself grace and lean into healthy coping and resilience-bolstering strategies. Lean into meaningful connections and joy-giving things.

Finally, with over one-third of adults failing to clock seven hours of sleep per night, our country is sleepy. Sleep duration and quality are directly tied to metabolic health. Indeed, our circadian rhythm even affects our body’s ability to use insulin properly.

The takeaway.

While we can’t alter certain fixed factors like genetics and age, the empowering reality is that many modifiable variables exist that directly impact our metabolic health. From nutrition and sleep, to hormone balance, stress mitigation, nourishing the gut, balancing blood sugar, building and maintaining muscles, and more–the metabolic power play is very much in our hands.

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