Basophils (absolute & percent)

Routine annual

also

What it isThe rarest white blood cell type. Basophils release histamine and other inflammatory mediators during allergic reactions.

DoesAmplify allergic and chronic inflammatory responses.

GoodA low or absent basophil count is normal and reflects quiescent allergic biology.

BadElevated basophils flag chronic allergic inflammation, chronic myeloid leukemia, or other rare myeloproliferative disorders.

Standard
0.0–0.2 K/µL; 0–2%.
Optimal
0–0.05 K/µL, 0–0.8% (lower is good)
Modifiers
Rises with chronic allergic disease.

How to optimize

Lifestyle
Identify allergen exposures.
Diet
Identify food sensitivities.
Supplements
Quercetin (500mg 2×/day), vitamin C (500mg 2×/day).
Peptides
Drugs
Antihistamines; hematology referral if persistently elevated.