What Does It Mean When Someone Is Said to Have a Slow Metabolism?

Metabolism explains the total energy utilized by the body. Metabolic activity is usually measured in calories daily. When you’ve a sluggish metabolism, it suggests that you exhaust less calories than average for your age, gender and size. Your everyday metabolic activity can be divided into your basal metabolic rate, thermal impact of feeding and thermal effect of activity.

Resting Metabolic Rate

Your resting, or basal, metabolic rate stands for the number of calories your body has to maintain standard activities like organ function and temperature policy. Your resting metabolic rate makes up 60 to 75 percent of your complete metabolic rate. Numerous elements affect your basal metabolic rate, including lean body mass, thyroid hormones and adrenal hormones. Lean body mass consists of everything that is not fat, like organs, bone, skin and muscle. The more lean tissue you have, the more complete calories you burn daily. Your lean mass slowly decreases with age, and therefore your basal metabolic rate decreases proportionately.

Thermal Effect of Food

Energy should be utilized to process the food you take in. Energy made use of is called the thermal effect of food and is impacted by many aspects. Some elements are under your control, like meal timing, size, frequency and composition. Other aspects, like age, gender and genetics, aren’t under your control. Depending on the protein, fat, carbohydrate and liquor content of a meal, in between 1 and 30 percent of calories from it could be used for processing. Consult your physician to figure out if your metabolism may be influenced by a low thermal result of food.

Thermal Effect of Activity

Your activity level contributes approximately 20 to 25 percent of your daily energy expenditure, relying on how active you are. Activity might be something as small as brushing your teeth or as arduous as running a marathon. Some activities assist to keep lean body mass and your basal metabolic rate.


Understanding your metabolism is best accomplished with the aid of an expert. Numerous health clubs and sport performance centers offer tests that measure your resting metabolic rate and your calorie use throughout exercise. Consult your doctor if you believe that you’ve a slow metabolism. Hormonal troubles with your resting metabolic rate can often be identified through blood tests.