{"id":1356,"date":"2025-05-28T21:36:15","date_gmt":"2025-05-28T16:06:15","guid":{"rendered":"http:\/\/ultrahumanblog.analysedigital.com\/?p=1356"},"modified":"2025-06-13T15:16:51","modified_gmt":"2025-06-13T09:46:51","slug":"what-is-metabolic-age-and-how-to-improve-it","status":"publish","type":"post","link":"https:\/\/blog.ultrahuman.com\/blog\/what-is-metabolic-age-and-how-to-improve-it\/","title":{"rendered":"What is metabolic age? Understand and improve this key health metric"},"content":{"rendered":"\n<p>While your chronological age is simply the number of years you\u2019ve been alive, your metabolic age offers deeper insight into how well your body is functioning behind the scenes.<\/p>\n\n\n\n<p>Metabolic age reflects how efficiently your body burns energy at rest \u2014 essentially, the speed and health of your metabolism. <\/p>\n\n\n\n<p>A higher metabolic age suggests your body is burning fewer calories than expected for your age group, which can be linked to lower muscle mass, a slower metabolism, and increased risk of chronic conditions like cardiovascular disease, metabolic syndrome, and type 2 diabetes.<\/p>\n\n\n\n<p>In this guide, we\u2019ll explain how metabolic age is estimated, what it means for your health, and what you can do to lower it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Highlights<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Metabolic age has emerged as a marker of your metabolic health.<\/li>\n\n\n\n<li>Your body burns energy at rest, and this is known as your Basal Metabolic Rate (BMR). This is higher among healthy individuals with good muscle mass.<\/li>\n\n\n\n<li>Metabolic age is calculated by comparing your Basal Metabolic Rate (BMR) to the average of your chronological age group.<\/li>\n<\/ul>\n\n\n\n<p><strong>Read next: <a href=\"https:\/\/blog.ultrahuman.com\/blog\/how-is-your-metabolic-score-calculated\/\">How metabolic scores are calculated \u2013 and what they mean<\/a><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is metabolism?<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"465\" src=\"https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-2-1024x465.jpg\" alt=\"metabolism\" class=\"wp-image-49739\" srcset=\"https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-2-1024x465.jpg 1024w, https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-2-300x136.jpg 300w, https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-2-768x349.jpg 768w, https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-2-1536x698.jpg 1536w, https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-2.jpg 2000w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Metabolism refers to all the chemical reactions in your body that convert food into energy and maintain life. These processes include breaking down nutrients to fuel movement, breathing, and digestion (catabolism), as well as building and repairing tissues (anabolism).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is metabolic health?<\/h2>\n\n\n\n<p>Metabolic health means having ideal levels of blood sugar, triglycerides, HDL cholesterol, blood pressure, and waist circumference without relying on medications. It&#8217;s a marker of how efficiently your body manages energy and maintains internal balance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Metabolism 101: How our bodies use energy<\/h2>\n\n\n\n<p>Metabolism is the sum of all the chemical processes your body uses to convert food into energy and sustain life. It\u2019s driven by two opposing systems: <strong>catabolism<\/strong>, which breaks food down to release energy, and <strong>anabolism<\/strong>, which uses that energy to build and repair the body. <\/p>\n\n\n\n<p><strong>Catabolism<\/strong> breaks down carbohydrates, fats, and proteins from food into usable energy. This fuels everything from muscle movement to brain function. <\/p>\n\n\n\n<p><strong>Anabolism<\/strong>, its opposite, uses that energy to support growth, tissue repair, and maintenance, like building muscle or healing wounds.<\/p>\n\n\n\n<p>Your <strong>total energy expenditure<\/strong> \u2014 the calories you burn in a day \u2014 comes from four key areas:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Basal Metabolic Rate (BMR)<\/strong> is the energy your body uses at rest to keep vital functions running, like your heart beating or brain working. It accounts for 60\u201380% of your daily energy use and is influenced by factors like age, sex, body size, and muscle mass.<\/li>\n\n\n\n<li><strong>Thermic Effect of Food (TEF)<\/strong> is the energy required for the digestion, absorption, and disposal of what we eat and drink. TEF makes up 10% of our daily energy use.<\/li>\n\n\n\n<li><strong>Activity Energy Expenditure (AEE)<\/strong> includes all energy expended by movement. That includes workouts, everyday tasks like walking, cleaning, or even fidgeting. This is the most variable part, making up 20\u201350% of your energy use.<\/li>\n\n\n\n<li><strong>Sleeping Metabolic Rate (SMR)<\/strong> is the energy you burn during sleep. Energy use increases in the second half of the night, especially during REM sleep, when brain activity and glucose metabolism ramp up.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">What is metabolic age?<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"465\" src=\"https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-1024x465.jpg\" alt=\"metabolic age\" class=\"wp-image-49740\" srcset=\"https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-1024x465.jpg 1024w, https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-300x136.jpg 300w, https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-768x349.jpg 768w, https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-1536x698.jpg 1536w, https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age.jpg 2000w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>Metabolic age<\/strong> is a comparison between your <strong>Basal Metabolic Rate (BMR)<\/strong> and the average BMR of people in your age group. BMR is the number of calories your body burns at rest to maintain essential functions like breathing, circulation, and cell repair.<\/p>\n\n\n\n<p>If your metabolic age is <strong>higher<\/strong> than your actual age, it suggests your metabolism is slower than average \u2014 often due to low muscle mass, poor fitness, or suboptimal body composition.<\/p>\n\n\n\n<p>Increased exercise will build healthy muscle tissue, which in turn will improve your metabolic age. That&#8217;s because muscle burns more energy than fat. In real terms, that means someone who has a high level of muscle mass will burn more calories sitting at their desk than someone with a lower muscle mass. <\/p>\n\n\n\n<p>So the fitter, healthier, and stronger you are, the lower your metabolic age will be. If your metabolic age is lower than your actual age, it <a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC6575031\/\">means your body is in good shape<\/a>. <\/p>\n\n\n\n<p>Some adults can have the metabolic age of a 15-year-old or lower, which means their body is top of the class at burning calories.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to calculate your basal metabolic rate (BMR)<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-4-1024x576.jpg\" alt=\"metabolic-age\" class=\"wp-image-49737\" srcset=\"https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-4-1024x576.jpg 1024w, https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-4-300x169.jpg 300w, https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-4-768x432.jpg 768w, https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-4-1536x864.jpg 1536w, https:\/\/blog.ultrahuman.com\/wp-content\/uploads\/2021\/10\/metabolic-age-4.jpg 2000w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>To estimate your BMR, you can use the <strong>Harris-Benedict Equation<\/strong>, which factors in your sex, age, height, and weight. Here&#8217;s how to do it:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">For Men:<\/h4>\n\n\n\n<p>BMR = 88.362 + (13.397 \u00d7 weight in kg) + (4.799 \u00d7 height in cm) \u2013 (5.677 \u00d7 age in years)<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">For Women:<\/h4>\n\n\n\n<p>BMR = 447.593 + (9.247 \u00d7 weight in kg) + (3.098 \u00d7 height in cm) \u2013 (4.330 \u00d7 age in years)<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Example: (Female, 65 kg, 165 cm tall, 35 years old):<\/h4>\n\n\n\n<p><strong>BMR = 447.593 + (9.247 \u00d7 65) + (3.098 \u00d7 165) \u2013 (4.330 \u00d7 35)<\/strong><br><strong>= 447.593 + 600.055 + 511.17 \u2013 151.55<\/strong><br><strong>= ~1,407 kcal\/day<\/strong><\/p>\n\n\n\n<p>This means she burns roughly 1,407 calories a day doing absolutely nothing \u2014 just by staying alive.<\/p>\n\n\n\n<p>Now, consider <strong>metabolic age<\/strong>. It compares your BMR to the average BMR of people your age. If your calculated BMR is higher than average for your age group, your metabolic age is <em>lower<\/em> \u2014 suggesting a more efficient metabolism. <\/p>\n\n\n\n<p>While comparing BMR is not easy, some rough examples based on average BMI and heights are below:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Sex<\/strong><\/td><td><strong>Age Group<\/strong><\/td><td><strong>Average Age Used<\/strong><\/td><td><strong>Assumed Height (cm)<\/strong><\/td><td><strong>Assumed Weight (kg)<\/strong><\/td><td><strong>Estimated BMR (kcal\/day)<\/strong><\/td><\/tr><tr><td><strong>Male<\/strong><\/td><td>18\u201325<\/td><td>21<\/td><td>175<\/td><td>72<\/td><td>1714<\/td><\/tr><tr><td><strong>Male<\/strong><\/td><td>26\u201335<\/td><td>30<\/td><td>175<\/td><td>72<\/td><td>1669<\/td><\/tr><tr><td><strong>Male<\/strong><\/td><td>36\u201345<\/td><td>40<\/td><td>175<\/td><td>72<\/td><td>1619<\/td><\/tr><tr><td><strong>Male<\/strong><\/td><td>46\u201355<\/td><td>50<\/td><td>175<\/td><td>72<\/td><td>1569<\/td><\/tr><tr><td><strong>Male<\/strong><\/td><td>56\u201365<\/td><td>60<\/td><td>175<\/td><td>72<\/td><td>1519<\/td><\/tr><tr><td><strong>Male<\/strong><\/td><td>66\u201375<\/td><td>70<\/td><td>175<\/td><td>72<\/td><td>1469<\/td><\/tr><tr><td><strong>Female<\/strong><\/td><td>18\u201325<\/td><td>21<\/td><td>165<\/td><td>62<\/td><td>1385<\/td><\/tr><tr><td><strong>Female<\/strong><\/td><td>26\u201335<\/td><td>30<\/td><td>165<\/td><td>62<\/td><td>1340<\/td><\/tr><tr><td><strong>Female<\/strong><\/td><td>36\u201345<\/td><td>40<\/td><td>165<\/td><td>62<\/td><td>1290<\/td><\/tr><tr><td><strong>Female<\/strong><\/td><td>46\u201355<\/td><td>50<\/td><td>165<\/td><td>62<\/td><td>1240<\/td><\/tr><tr><td><strong>Female<\/strong><\/td><td>56\u201365<\/td><td>60<\/td><td>165<\/td><td>62<\/td><td>1190<\/td><\/tr><tr><td><strong>Female<\/strong><\/td><td>66\u201375<\/td><td>70<\/td><td>165<\/td><td>62<\/td><td>1140<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>If your BMR score is lower than average, then your metabolic age is <em>higher<\/em> \u2014 possibly indicating a slower metabolism, often linked to low muscle mass or higher body fat.<\/p>\n\n\n\n<p>While it\u2019s not a medical measure, your metabolic age can be a useful indicator of how your body is performing behind the scenes \u2014 and whether there\u2019s room to improve your metabolic health.<\/p>\n\n\n\n<p>It\u2019s an important indicator of how hardworking your metabolism is. It also steps away from using your \u2018real age\u2019, or the number on traditional weighing scales, to define your fitness. Your metabolic age shifts the focus away from weight and focuses more on your body\u2019s structure, or composition, of muscle and fat. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><strong>Metabolic age and metabolic syndrome<\/strong><\/strong><\/h2>\n\n\n\n<p>Metabolic syndrome is a cluster of conditions that occur together, increasing your risk of heart disease, stroke, and type 2 diabetes. These conditions include increased blood pressure, high blood sugar, excess body fat around the waist, and abnormal cholesterol or triglyceride levels. <\/p>\n\n\n\n<p>Having just one of these conditions doesn&#8217;t mean you have metabolic syndrome. But it does mean you have a greater risk of serious disease. And if you develop more of these conditions, your risk of complications, such as type 2 diabetes and heart disease, rises even higher. A consistently high metabolic age can be one precursor to metabolic syndrome.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How can you improve your metabolic age?<\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"What is Metabolic Health and How can I Improve it? | Ultrahuman Official\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/nl9Eg0KEKq0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">1. <strong>Eat more protein<\/strong><\/h3>\n\n\n\n<p>Your body burns more calories by digesting protein-rich foods than fat-rich foods, which means eating more protein can help fight an ageing metabolism. A simple way to do this is to make sure you have a source of protein in every meal. <\/p>\n\n\n\n<p>A study showed that individuals with a younger relative metabolic age consumed significantly more grains, lauric acid, meat alternatives, a greater percentage of calories from polyunsaturated fatty acids, and were inclined towards consumption of greater amounts of vegetable protein.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.<strong> <\/strong>Build muscle mass<\/h3>\n\n\n\n<p>Muscle mass has a huge impact on your metabolism, so strength and resistance training can help to speed it up and also burn more calories in the process. As you get older and your metabolism slows down, strength training to improve muscle mass can ensure your metabolic age stays as low as possible.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3.<strong> Sleep<\/strong><\/h3>\n\n\n\n<p>Studies have shown that <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/21471283\">poor sleep can slow down your basal metabolic rate (BMR)<\/a> \u2013 the number of calories your body burns at rest. Studies show that even short-term sleep loss can reduce energy expenditure and impair insulin sensitivity, making it harder for the body to process glucose efficiently.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. <strong>Drink more cold water<\/strong><\/h3>\n\n\n\n<p>People who drink water instead of sugary drinks are more successful at losing weight and keeping it off. <em><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/14671205\/\" target=\"_blank\" rel=\"noreferrer noopener\">Studies<\/a><\/em> have shown that drinking 17 ounces (0.5 litres) of water increases resting metabolism by 10\u201330% for about an hour. This calorie-burning effect may be even greater if you drink cold water, as your body uses energy to heat it up to body temperature.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5.<strong> Drink Green Tea or Oolong Tea<\/strong><\/h3>\n\n\n\n<p>Green tea and oolong tea have <a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC3908530\/\">been shown to increase metabolism by 4\u20135%<\/a>. These teas help convert some of the fat stored in your body into free fatty acids, which may increase fat burning by 10\u201317%. As they are low in calories, drinking these teas may be good for both weight loss and weight maintenance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Your metabolic age is based on what\u2019s called your Basal Metabolic Rate \u2013 often known as just BMR, compared to the average BMR of someone of the same age. <\/p>\n\n\n\n<p>Your BMR tells you how many calories your body burns while resting, and it\u2019s a good gauge of your efficiency in burning the calories you consume. Your metabolic age is your BMR compared to others in your age group. <\/p>\n\n\n\n<p>If your <em><a href=\"https:\/\/www.healthline.com\/nutrition\/metabolism-and-age\" target=\"_blank\" rel=\"noreferrer noopener\">metabolic age<\/a><\/em> is lower than your chronological age, that\u2019s probably a good sign. If it\u2019s higher, you may want to take a look at your dietary habits and exercise routine. <\/p>\n\n\n\n<p>There are ways to improve your metabolic age, which involve protein consumption, good sleep, drinking cold water, and green or oolong tea.<\/p>\n\n\n\n<p><em>Disclaimer: The contents of this article are for general information and educational purposes only. It neither provides any medical advice nor intends to substitute professional medical opinion on the treatment, diagnosis, prevention or alleviation of any disease, disorder or disability. Always consult with your doctor or qualified healthcare professional about your health condition and\/or concerns and before undertaking a new health care regimen including making any dietary or lifestyle changes.&nbsp;<\/em><\/p>\n\n\n\n<p><strong>Reference<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><em><a href=\"https:\/\/www.healthline.com\/nutrition\/metabolism-and-age\" target=\"_blank\" rel=\"noreferrer noopener\">Why Your Metabolism Slows Down With Age<\/a><\/em><\/li>\n\n\n\n<li><em><a href=\"https:\/\/www.healthline.com\/nutrition\/top-10-evidence-based-health-benefits-of-green-tea\" target=\"_blank\" rel=\"noreferrer noopener\">10 Evidence-Based Benefits of Green Tea<\/a><\/em><\/li>\n\n\n\n<li><em><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/14671205\/\" target=\"_blank\" rel=\"noreferrer noopener\">Water-induced thermogenesis<\/a><\/em><\/li>\n\n\n\n<li><em><a href=\"https:\/\/www.healthline.com\/nutrition\/how-much-water-should-you-drink-per-day\" target=\"_blank\" rel=\"noreferrer noopener\">How Much Water Should You Drink Per Day?<\/a><\/em><\/li>\n\n\n\n<li><em><a href=\"https:\/\/www.healthandaesthetics.co.uk\/\">Health &amp; Aesthetics<\/a><\/em><\/li>\n<\/ol>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>We explain metabolic age, and how to calculate and compare your basal metabolic rate<\/p>\n","protected":false},"author":3,"featured_media":49738,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[22,4],"tags":[],"class_list":["post-1356","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-longevity","category-metabolic-health"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.3 (Yoast SEO v25.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is metabolic age? 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