Magnesium, RBC

Advanced wellness

also red blood cell magnesium

What it isMagnesium measured inside red blood cells, providing a window on intracellular magnesium status that serum can't show.

DoesReports true cellular magnesium availability where most of magnesium's biology happens.

GoodMid-high RBC magnesium signals adequate cellular magnesium stores.

BadLow RBC magnesium reveals deficiency hidden by normal serum magnesium and explains symptoms (cramps, palpitations, insomnia, anxiety) in those whose serum looks fine.

Standard

4.2–6.8 mg/dL.

Optimal

5.5–6.5 mg/dL (higher is good within range)

Modifiers

Same drivers as serum magnesium but with a longer time lag.

How to optimize

Lifestyle: Same as serum magnesium.
Diet: Same as serum magnesium.
Supplements: Magnesium glycinate (300–400mg/day), magnesium L-threonate for cognition.
Peptides: —
Drugs: —

within Minerals