---
title: "Low Libido During Fasting: Causes, Fixes, and Lab Tests"
description: "Low libido during fasting often comes from low energy availability, stress hormones, or thyroid shifts. Targeted labs available at Quest—no referral."
canonical: "https://www.vitalsvault.com/symptoms/low-libido-during-fasting"
last-updated: 2026-08-22
---

# Low Libido During Fasting: Causes, Fixes, and Lab Tests

> Low libido during fasting often comes from low energy availability, stress hormones, or thyroid shifts. Targeted labs available at Quest—no referral.

---

Canonical HTML: https://www.vitalsvault.com/symptoms/low-libido-during-fasting
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