Why It Happens

This symptom may result from a combination of dietary, hormonal, or environmental factors affecting your body's internal balance.

How to Manage

Brittle nails can reflect nutrient deficiencies or hormonal changes. Focus on foods rich in biotin, iron, and healthy fats. Tracking nail changes over time may help link symptoms to diet or cycle shifts.

Key Biomarkers

• Cortisol

Expert-Backed Reads

• The 7-Step Protocol to Conquer Stress: Insights from Andrew Huberman

• Understanding the "Stress Hormone" & Its Impact on Your Health

• 2 Silent Killers in Your Blood: How Mito Health Can Uncover and Combat Stress-Induced Aging

You Might Also Be Experiencing

• Brittle Nails After Menopause

• Brittle Nails Before Eating

• Brittle Nails At Night

• Brittle Nails During Fasting

• Brittle Nails In 20S

References

• Mayo Clinic – Anxiety

• Mayo Clinic – Depression

• CDC – Mental Health

References

• Mayo Clinic – Brittle nails: Causes

• Healthline – Why Are My Nails So Brittle?

• NIH MedlinePlus – Nail Abnormalities