What Blood Tests Should I Get for Low Energy?
The best blood tests for low energy are TSH, ferritin, vitamin B12, vitamin D, CBC, and fasting glucose. These cover the six most common medical causes: hypothyroidism, iron deficiency, B12 deficiency, vitamin D deficiency, anemia, and blood sugar dysregulation.
Possible Causes
Recommended Tests
$72 + $18 order fee · $90 all-in
The 7 tests ordered separately: $76.50 (save $4.50)
Includes 5 of the 6 recommended tests below (not included: Fasting Glucose), plus 2 more.
All 6 recommended tests
$64 + one $18 order fee = $82 all-in
When to See a Doctor
Seek immediate medical attention if your symptoms are severe, rapidly worsening, or accompanied by warning signs (chest pain, shortness of breath, high fever). Blood tests are a valuable first step, but they don't replace evaluation by a healthcare professional.
Frequently Asked Questions
Related Symptoms
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Content reviewed for accuracy by the JustLabs editorial team.