Eating Disorder Lab Abnormalities Cheat Sheet

Finally understand what eating disorder lab results actually mean!

Blood work can feel overwhelming.

• Low potassium.
• Elevated liver enzymes.
• Low phosphorus.
• Abnormal blood counts.
• Electrolyte imbalances.

This cheat sheet explains the most common reasons why labs can go askew when eating disorder behaviors are on board. These clinical markers can be overlooked by many medical providers but provide important insight to specific behaviors as well as levels of malnutrition for someone struggling with an eating disorder.

This is the cheat sheet I always wished I had, but it didn’t exist. So I created it! And truth be told, I still reference it after 12 years treating eating disorders.

Whether you’re recovering from an eating disorder, supporting someone you love, or working as a healthcare professional, lab results often raise more questions than answers.

This guide was created to change that.

Written by an eating disorder dietitian with years of clinical experience, Eating Disorder Lab Abnormalities Explained walks you through the most common laboratory changes seen in eating disorders using clear, easy-to-understand language—without oversimplifying the science.

You’ll learn not only what changes occur, but why they happen and what they may mean during different stages of recovery.

Inside You’ll Learn

✔ Common electrolyte abnormalities (potassium, sodium, magnesium, phosphorus)

✔ Why starvation affects liver enzymes

✔ Understanding anemia and blood cell changes

✔ What dehydration labs look like

✔ Why normal lab work does not rule out a serious eating disorder

✔ Hormonal and metabolic changes associated with malnutrition

✔ Clinical pearls that help connect symptoms with laboratory findings

✔ Easy-to-read explanations designed for patients, caregivers, students, and professionals

Perfect For

• Individuals recovering from eating disorders
• Parents and caregivers
• Dietitians
• Therapists
• Nursing students
• Medical students
• Healthcare professionals wanting a quick clinical reference

Created by an Eating Disorder Dietitian

This resource was created by a registered dietitian specializing in eating disorders and is based on years of experience helping individuals navigate recovery with evidence-based, compassionate care.

Instant Digital Download

• Printable PDF
• Lifetime access
• Read on your phone, tablet, or computer
• Perfect for personal learning or professional reference

Medical Disclaimer

This guide is for educational purposes only and is not intended to diagnose or replace medical care. Always discuss laboratory results and treatment decisions with your physician and treatment team.