Understanding Lab Tests for Eating Disorders
Written by Private MD Labs Medical Writing Team • Last Updated: September 8, 2025
Eating disorders such as anorexia nervosa, bulimia nervosa, and binge eating disorder are complex mental health conditions diagnosed through clinical evaluation and behavioral assessment. While there is no specific blood test to diagnose eating disorders themselves, lab testing is fundamental for assessing the physical complications and monitoring the body's response to malnutrition and other health impacts.
Recommended Test
Sex Hormone Binding Globulin, SHBG
This test measures SHBG, a protein that binds to sex hormones in the blood. Malnutrition associated with eating disorders can significantly affect SHBG levels, with both anorexia nervosa and bulimia linked to elevated SHBG levels. Monitoring these changes helps healthcare providers assess the impact of nutritional status on hormonal function and reproductive health.
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Why Blood Testing is Important in Eating Disorders
Eating disorders can cause significant nutritional deficiencies, hormonal imbalances, and organ dysfunction. Blood tests are essential for evaluating these systemic effects, monitoring overall health status, and guiding medical treatment to address complications that may arise from restrictive eating, purging behaviors, or malnutrition.
Understanding the Connection
The relationship between eating disorders and hormone levels is complex. Changes in SHBG can indicate how malnutrition is affecting the body's hormonal balance, particularly reproductive hormones. This information helps healthcare providers develop comprehensive treatment plans that address both the psychological and physical aspects of eating disorders.
Important Considerations
The information here is for educational purposes only and is not a substitute for professional medical advice. Eating disorders require specialized treatment from qualified healthcare professionals. Always consult with a healthcare provider for proper diagnosis and treatment.
