The Mifflin-St Jeor Equation is a formula that estimates the number of calories a person needs to maintain their current weight, based on their BMR. BMR is the amount of energy expended while at rest in a neutrally temperate environment, in the post-absorptive state (meaning that the digestive system is inactive, which requires about 12 hours of fasting in humans). The equation is separated by gender:
For men: BMR = 10 Ã weight (kg) + 6.25 Ã height (cm) - 5 Ã age (years) + 5 For women: BMR = 10 Ã weight (kg) + 6.25 Ã height (cm) - 5 Ã age (years) - 161
