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Dr. Sarah Chen, PhD

Lead Metabolic Researcher

Credentials

  • PhD, Nutritional Biochemistry
  • MSc, Exercise Physiology

Biography

Dr. Chen oversees the scientific accuracy of calculator formulas and chapter content. Her research focuses on energy balance, body composition, and individual metabolic variation. All quantitative content on the site is validated against her reference framework.

Areas of Expertise

Energy balance and body compositionMifflin-St Jeor and Katch-McArdle validationMacronutrient partitioning

Articles Authored (4)

The Best HIIT Workout for Belly Fat: Evidence-Based Protocols That Actually Work for a Leaner Midsection

Unlock the secrets to a leaner midsection with our evidence-based HIIT workout protocols. This guide reveals the most effective strategies to target stubborn be

38 min read · Updated Apr 22, 2026

Belly Fat in Men vs Women: The Biology of Why It's Different – An AI FatBurn Guide

Ever wonder why belly fat appears differently in men vs. women? This article delves into the unique biological factors influencing fat storage and distribution

38 min read · Updated Apr 22, 2026

Belly Fat After 40: Why It Happens, Health Risks, and How AI FatBurn Can Help You Reverse It

Is stubborn belly fat after 40 becoming a concern? Uncover the surprising reasons behind its accumulation and the serious health risks it presents. Learn how AI

34 min read · Updated Apr 22, 2026

How to Burn Belly Fat Fast: The Complete Science-Backed Guide for 2025

Struggling to shed stubborn belly fat? This comprehensive guide reveals the most effective, science-backed strategies to help you burn belly fat fast in 2025. D

40 min read · Updated Apr 22, 2026