The MacroFactor BMR Series​​

We’ve done a thorough review of the literature on the latest BMR science digging into the research on factors that affect BMR.

On one level, this series will explain the “whys” behind MacroFactor’s BMR formulas, but on a more basic level, it’ll serve as a comprehensive resource to teach you everything you need to know about resting energy expenditure.

Do People Really Have "Fast Metabolisms" or "Slow Metabolisms"?
Do People Really Have “Fast Metabolisms” or “Slow Metabolisms”?

If you compare two people who are the same height, same weight, same age, same sex, and who have the same body composition, could those two people still have BMRs that differ by 500+ calories per day? The answer might surprise you. Read this article to dig into the research on the subject, and learn what it means for how you approach your diet goals.

Best BMR equation
What are the Best Basal Metabolic Rate Equations?

If you want to calculate your energy needs for weight gain, weight loss, or athletic performance, you first need to estimate your basal metabolic rate: how many Calories your body burns at rest. But there are at least 248 different BMR equations. Which equation is best, and which one should you use to estimate your energy needs?

Understanding Basal Metabolic Rates in Athletes
How (and Why) Athletes’ BMRs Differ from Non-Athletes

It’s commonly believed that athletes have higher BMRs than non-athletes because their training leads to increased muscle mass. While athletes do indeed have higher BMRs, muscle mass differences aren’t the only factor.

How Weight Loss Affects your BMR
How Weight Loss Affects BMR

This article looks at how weight loss can influence your basal metabolic rate (BMR) and discusses the impact of metabolic adaptation.

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No, PCOS Doesn’t Lower BMR (Scientific Review)

There are substantial claims that women with Polycystic Ovary Syndrome (PCOS) have a lower Basal Metabolic Rate (BMR), which has fueled concerns about weight management challenges. This article dives into the origin of these concerns.

Do People Really Have "Fast Metabolisms" or "Slow Metabolisms"?

Do People Really Have “Fast Metabolisms” or “Slow Metabolisms”?

If you compare two people who are the same height, same weight, same age, same sex, and who have the same body composition, could those two people still have BMRs that differ by 500+ calories per day? The answer might surprise you. Read this article to dig into the research on the subject, and learn what it means for how you approach your diet goals.

Best BMR equation

What are the Best Basal Metabolic Rate Equations?

If you want to calculate your energy needs for weight gain, weight loss, or athletic performance, you first need to estimate your basal metabolic rate: how many Calories your body burns at rest. But there are at least 248 different BMR equations. Which equation is best, and which one should you use to estimate your energy needs?

Understanding Basal Metabolic Rates in Athletes

How (and Why) Athletes’ BMRs Differ from Non-Athletes

It’s commonly believed that athletes have higher BMRs than non-athletes because their training leads to increased muscle mass. While athletes do indeed have higher BMRs, muscle mass differences aren’t the only factor.

How Weight Loss Affects your BMR

How Weight Loss Affects BMR

This article looks at how weight loss can influence your basal metabolic rate (BMR) and discusses the impact of metabolic adaptation.

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