🫤 Why BMI Might Be Misleading For Fit Individuals

PLUS: Muscle is denser than fat—here’s what that means for your weight

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TODAY’S LEVEL UP:

  • Coach’s Corner: Why BMI might be misleading for fit individuals

  • Did You Know?: Muscle is denser than fat—here’s what that means for your weight

  • Question from Our Readers: Does BMI take into consideration whether weight is from muscle or body fat?

  • Fit Trivia: Which Hollywood actor gained 20 pounds of muscle for a superhero role in just 6 months?

Why BMI Might Be Misleading for Fit Individuals

The Body Mass Index (BMI) is one of the most commonly used tools for assessing whether someone is underweight, normal weight, overweight, or obese. But here’s the catch: it doesn’t differentiate between muscle and fat. That means someone with a lot of muscle can be classified as overweight or even obese according to BMI, even if they have very low body fat.

  • It Only Measures Weight and Height: BMI is simply a ratio of your weight to height, without considering your body composition. So, if you’re someone who lifts weights and has more muscle, your BMI might indicate you’re overweight even though you’re lean and fit.

  • Doesn’t Reflect Health: A high BMI can trigger alarms for health risks, but it doesn’t necessarily mean you’re unhealthy. Similarly, someone with a “normal” BMI might have a higher body fat percentage, making them more at risk for certain health issues.

Instead of relying solely on BMI, focus on other metrics like body fat percentage, waist circumference, and how you feel overall. These give a clearer picture of your health and fitness.

FROM RYAN’S DESK

Nobody is born strong. Strength is something you earn through struggle, sweat, and persistence. Be the guy who earns his strength every day. That’s the difference between being average and being unstoppable.

Did You Know?:

Muscle is Denser than Fat—Here’s What That Means for Your Weight

Many people get discouraged when they don’t see the scale budge, even when they’re losing inches and getting stronger. The reason? Muscle is denser than fat, meaning it takes up less space in your body. So, as you lose fat and build muscle, your weight might not change much, but your body composition is improving. That’s why it’s important to look beyond the scale and use measurements, progress photos, or even how your clothes fit as indicators of success.

Question from Our Readers:

“Does BMI take into consideration whether the weight is from muscle or body fat?”

  • Matt, 38, Accountant, from Miami, FL

Great question, Matt! Unfortunately, the answer is no. BMI doesn’t distinguish between muscle and fat, which is why it can be misleading for athletes, bodybuilders, or even people who lift weights regularly. Here’s why:

  • BMI Assumes All Weight is the Same: Whether your weight comes from fat or lean muscle mass, BMI treats it equally. So, a 5’10” bodybuilder weighing 200 pounds might be classified as obese, even if they have a very low body fat percentage.

  • Better Alternatives Exist: For a more accurate assessment, consider getting a body composition test, using tools like calipers, a DEXA scan, or even a smart scale that estimates body fat percentage. These metrics will give you a clearer picture of your health.

So, while BMI can be a rough guideline, it’s not the best tool for fit individuals. Look at the bigger picture and use more precise measurements to track your progress.

Fit Trivia: Which Hollywood actor gained 20 pounds of muscle for a superhero role in just 6 months?

Answer: Chris Evans! To prepare for his role as Captain America, Evans followed an intense training regimen and packed on 20 pounds of lean muscle in just 6 months. His transformation is one of the most talked-about in superhero movie history.

Ryan Engel, Intl. Fat Loss Coach

Ryan is a leading fitness coach and one of the most known professionals in the space.

He specializes in Body Recomposition and visual body aesthetics and has reached millions worldwide with his powerful messaging. He brings a unique, non-nonsense, yet sophisticated approach to body change.

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Publisher: Ryan Engel

Editor: Michael Pender

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