Alex Schultz
February 28, 2026

How to Increase Resting Metabolic Rate Naturally

Learn how to increase resting metabolic rate naturally by building lean muscle, preserving metabolism, and tracking body composition with a Dexa Scan.

Author
5 min read
How to Increase Resting Metabolic Rate Naturally

Your resting metabolic rate, often called RMR, is the number of calories your body burns at rest to maintain basic functions like breathing, circulation, and cell repair. It accounts for the majority of daily calorie expenditure for most people.

If you want to improve fat loss, maintain a healthy body composition, or support long-term metabolic health, understanding how to increase resting metabolic rate naturally is critical.

This article explains how RMR works, what influences it, and how to improve it through sustainable strategies backed by accurate body composition tracking with a Dexa Scan.

What Determines Resting Metabolic Rate?

Several factors influence RMR:

  • Lean body mass
  • Age
  • Hormones
  • Body fat levels
  • Activity history
  • Genetics

The most powerful modifiable factor is lean muscle mass. The more metabolically active tissue you have, the more calories you burn at rest.

1. Build and Preserve Lean Muscle Mass

Muscle tissue requires energy to maintain, even when you are not moving.

Increasing lean mass through resistance training:

  • Raises resting energy expenditure
  • Improves insulin sensitivity
  • Supports long-term fat loss

Preserving muscle during dieting is equally important. Losing lean mass lowers metabolic rate and makes fat regain more likely.

Tracking lean mass with a Dexa Scan ensures muscle is increasing or being preserved appropriately.

2. Strength Train Consistently

Resistance training stimulates muscle growth and increases metabolic demand.

Focus on:

  • Progressive overload
  • Compound movements
  • Full-body training
  • Adequate recovery

Over time, consistent strength training builds structural tissue that elevates RMR naturally.

3. Avoid Aggressive Calorie Restriction

Severe calorie restriction can lower resting metabolic rate.

When calories drop too low:

  • Muscle mass may decline
  • Hormonal function can shift
  • Metabolic adaptation occurs

A moderate deficit supports fat loss without sacrificing lean mass or suppressing metabolism.

4. Prioritize Protein Intake

Protein supports muscle preservation and growth.

Adequate protein intake:

  • Protects lean mass during fat loss
  • Increases thermic effect of food
  • Supports recovery from strength training

Maintaining muscle directly supports resting metabolic rate.

5. Improve Sleep and Stress Management

Chronic stress and poor sleep can disrupt metabolic regulation.

Elevated cortisol levels and sleep deprivation:

  • Promote muscle loss
  • Increase fat storage
  • Disrupt appetite regulation

Improving sleep quality supports hormonal balance and metabolic efficiency.

6. Increase Daily Movement

While resting metabolic rate refers to calories burned at rest, overall energy balance is influenced by total daily movement.

Increasing non-exercise activity:

  • Supports metabolic health
  • Improves insulin sensitivity
  • Enhances calorie expenditure

Combining strength training with daily movement creates a stronger metabolic foundation.

Why Body Composition Matters for Metabolic Rate

Resting metabolic rate is strongly influenced by body composition.

Higher lean mass supports:

  • Greater daily calorie burn
  • Better long-term weight stability
  • Reduced metabolic slowdown during fat loss

Excess fat mass, especially visceral fat, can impair metabolic health and hormone regulation.

A Dexa Scan provides:

  • Total lean mass measurement
  • Fat mass breakdown
  • Visceral fat assessment
  • Bone mineral density tracking

This allows you to see whether strategies are truly improving your metabolic foundation.

The scan itself takes about six minutes, making it efficient for routine monitoring.

How Often Should You Track Body Composition?

To monitor metabolic improvements effectively:

  • A Dexa Scan should be done monthly
  • Every other month at minimum
  • Never less frequent than that when actively managing fat loss or muscle gain

Long gaps between scans make it difficult to identify whether metabolism-supporting strategies are working.

Full body composition Dexa scans are not covered by insurance, making them a proactive investment in long-term metabolic health.

The Bottom Line

The most effective natural ways to increase resting metabolic rate are:

  • Building and preserving lean muscle mass
  • Strength training consistently
  • Avoiding extreme calorie restriction
  • Prioritizing protein intake
  • Optimizing sleep and recovery

Metabolism is not fixed. It responds to structural and behavioral changes.

Tracking body composition gives you objective feedback on whether your metabolic engine is improving over time.

Book Your DEXA Scan with Kalos Today in Downtown San Francisco, San Jose or Palo Alto!

If you want to increase your resting metabolic rate naturally, understanding your lean mass and fat distribution is essential. Kalos provides advanced Dexa Scan services to help you measure muscle, fat, and bone with precision.

Schedule your scan today, your journey to data-driven fitness starts now.

Schedule your DEXA scan today!

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