文摘
The objective of this study was to evaluate the effects of two high-calcium, marine dietary supplements -a fishbone powder (Phoscalim?) and a ray cartilage hydrolysate (Glycollagene?) -compared with milk (calcium reference) and a placebo (maltodextrin). Twenty healthy male volunteers were randomised to receive 836 mg of calcium from four different sources. An increase in serum and urinary calcium and parathormone, as well as parathyroid hormone (iPTH) and serum C telopeptides (s-CTx), was studied using the oral calcium load test. This study showed that dietary supplements from marine sources have effects on calcium bioavailability comparable to milk. On the other hand, marine calcium sources might prevent bone resorption in short term.