Fig. 5From: Higher bioavailability of magnesium citrate as compared to magnesium oxide shown by evaluation of urinary excretion and serum levels after single-dose administration in a randomized cross-over studyMean (SEM) magnesium concentration at different time points in serum. Biolectra = Biolectra® Magnesium 300 mg Kapseln; Verla = Magnesium Verla® purKaps. The standard error of the mean (SEM) is depicted by barsBack to article page