Fundamentally, your metabolic health is about how well your body responds to and processes food. Our metabolism’s job is to convert what we eat and drink into energy to power your body’s functions. When everything is working well, your body has the energy to do a range of amazing things – from breathing to circulating blood to creating and repairing cells to movement and exercise.
Unfortunately, abnormal chemical reactions in your body can disrupt this process. This is called a metabolic disorder, and when it occurs, your body can end up with too much of one thing and not enough of another, resulting in poorer health.
Your unique metabolic health is shaped by some things you cannot control – your age, gender and genes – as well as things that you can, including your gut microbiome, your stress level, mental health, sleep, diet and exercise. It’s a complex mechanism that can be difficult to fine tune for good health.
However, there are positive approaches you can make to maintain and maximize your metabolic health status. First, let’s look a little deeper at metabolic health.
Metabolic Health 101
At its most basic but also most critical level, metabolism sustains the minimal energy required for life, providing constant fuel for essential bodily functions. Think of it as all the systems that our body powers without any thought or action on our part – all the functions essential to life even when we’re resting that still require calories: breathing, digestion, thought, body temperature regulation, blood circulation, cell growth and repair, and hormone level management.
How much energy your body needs to perform these tasks has a name: basal metabolic rate (BMR). BMR is the minimum amount of calories your body needs to function when you’re at rest and not doing anything. Typically, those processes above use 60 to 70 percent of the fuel we consume. Your digestive system uses about 10 percent to process foods and the rest fuels physical movement.
Though there are averages, this mix is unique to individuals. An athlete might consume more calories to fuel movement and the percentages change. Someone who lives a sedentary life may consume fewer calories because they move less.
These adjustments can be frustrating, especially if you struggle with weight. For example, a fast metabolism makes it easy for some people to eat a lot of food and not gain weight. A slow metabolism may make it hard for people to lose weight just by cutting calories.
Since your metabolism naturally regulates itself to meet your body’s demands, this is also why weight loss can stall, slow down or plateau due to significant calorie intake reduction and rapid weight loss decreasing your BMR. The relationship between metabolism and weight is complex.
Things That Affect Your Metabolic Health