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Understand the Science

  • Why body fat percentage instead of weight?
  • What is a healthy body fat percentage?
  • Body Fat: Benefits and Risks
  • Types of Body Fat
  • Skinny is not always healthy
  • Limitations of BMI
  • Body Fat vs BMI
  • The Importance of Lean Mass for Healthy Aging
  • LMI vs BMI: What's the difference?
  • How is FMI (Fat Mass Index) different than BMI?
  • Fat Mass Index vs Body Fat Percentage
  • What to expect over time
  • What factors affect Resting Metabolic Rate?
  • Using RMR to Optimize Your Diet for Fat Loss
  • How to Use RMR to Build Muscle
  • Numbers Do Not Define You
  • How does Spren scan me?
  • How does Spren calculate body fat percentage?
  • References and Citations
  • Published studies
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