Your basal metabolic rate (BMR) is the number of calories your body needs to perform basic functions like breathing, circulating blood, producing cells, processing nutrients, and regulating temperature. This rate differs based on factors like age, sex, weight, and activity level.
Understanding your BMR is crucial because it represents the minimum number of calories your body needs to stay alive while at rest. It accounts for 40% to 70% of your total energy expenditure. Knowing your BMR can help you adjust your calorie intake to meet your health and fitness goals, whether you’re looking to lose, gain, or maintain your weight.
To figure out your BMR and daily calorie needs, you need to consider the types of activities you do throughout the day, which can be classified as restful, very light, light, moderate, or heavy.
Various formulas are available for calculating BMR such as Harris & Benedict, Katch and McArdle, Tagliabue/Andreoli, Mifflin, and Schofield.
Knowing your BMR and daily calorie requirement is key to managing your health and fitness goals. By considering factors like your activity level, age, sex, and weight, you can accurately calculate your BMR and adjust your calorie intake. This knowledge aids in making informed decisions about your diet and lifestyle, whether you’re aiming to lose, gain, or maintain weight.