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All samples were then cooled down on ice and centrifuged for 15 min at 15,000 rpm
Elevated methylmalonic acid or homocysteine with normal-ish b12 suggests functional deficiency requiring supplementation
If you experience severe pain, signs of infection (redness, warmth, swelling), or an allergic reaction (rash, itching, difficulty breathing), seek medical attention immediately
Elevated levels of these markers are a much more sensitive sign of a true deficiency than the standard B12 test alone
I find it helps to give a long breath out as I am inserting the needle
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