05/14/2026
Low energy is not always “just stress.”
Sometimes your body is trying to tell you something.
Here are some labs we commonly recommend patients discuss with their primary care provider when they want to get to the bottom of fatigue, brain fog, poor recovery, or feeling “off.”
CBC (Complete Blood Count)
Looks for anemia, infection patterns, and immune system changes that can contribute to fatigue.
CMP (Comprehensive Metabolic Panel)
Evaluates liver function, kidney function, electrolytes, blood sugar, and protein status.
Ferritin
Measures stored iron. Patients can experience fatigue, hair loss, dizziness, and poor exercise tolerance even when iron is technically “normal.”
Iron Panel (Iron, TIBC, Iron Saturation)
Helps assess how well your body is transporting and utilizing iron.
Vitamin D
Low vitamin D is incredibly common and may contribute to fatigue, mood changes, poor immune function, and muscle weakness.
Vitamin B12
Important for nervous system function, energy production, and brain health.
Folate
Works closely with B12 in methylation, red blood cell production, and cellular repair.
TSH
A screening marker for thyroid function, but not always the full picture.
Free T4 + Free T3
Shows how much thyroid hormone is available and active in the body.
Thyroid Antibodies (TPO + Thyroglobulin Antibodies)
Can help identify autoimmune thyroid conditions that may develop long before thyroid labs become severely abnormal.
Hemoglobin A1c
Measures average blood sugar over about 3 months.
Fasting Insulin
One of the most overlooked markers in fatigue and metabolic dysfunction. Insulin resistance can exist years before diabetes develops.
hs-CRP
A marker of systemic inflammation that may contribute to low energy, poor recovery, and chronic symptoms.
Testosterone Panel
Low testosterone can contribute to fatigue, low motivation, poor muscle recovery, brain fog, and reduced resilience in BOTH men and women.
This gives us a starting point. You can request these labs from your P*P, or comment “labs” and order them directly through our Labshop for $124.
Your labs should be interpreted with a provider for your most optimal outcome.