US$ 29.89
b12 dose injection Dosage and Frequency: 7 Guidelines for Adults Vitamin B12 Dosages: Your GoodRx
Description
I started out with a similar level (after a holiday in the south of France) but with a year plus of taking 2000iu d3 with 90mcg k2 daily it reached over 90

Intrinsic factor binds to vitamin B12, so that you can absorb it into the blood
Limit alcohol - Chronic heavy drinking interferes with B12 absorption from food

Measuring bioavailability, utilization, and excretion of rumen-protected lysine in lactating cows using an isotope technique
Effects of single nightly injections of growth hormone-releasing hormone (GHRH 129) in healthy elderly men
