Résumé
L’objectif de cette étude est d’évaluer l’influence de deux compléments alimentaires à forte teneur en calcium: des arêtes de poisson en poudre (Phoscalim®) et un hydrolysat de cartilage de raie (Glycollagène®), comparativement à du lait (élément de référence pour le calcium) et à un placebo (maltodextrine). Vingt hommes volontaires sains ont reçu 836 mg de calcium provenant des quatre produits étudiés. Le test de charge orale en calcium a permis de mesurer l’élévation du calcium et du phosphore sanguin et urinaire ainsi que la concentration plasmatique en parathormone et en télopeptides C du sérum.
Les résultats de cette étude montrent que les compléments alimentaires de source marine ont des effets sur la biodisponibilité calcique comparables à ceux du lait; d’autre part, les sources marines de calcium s’opposent à la résorption osseuse à court terme.
Abstract
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.
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Lecerf, J.M., Lamotte, C., Boukandoura, B. et al. Influence de deux compléments alimentaires marins à forte teneur en calcium sur le métabolisme du calcium et sur un marqueur biochimique de la résorption de la masse osseuse. Phytothérapie 5 (Suppl 1), 32–37 (2007). https://doi.org/10.1007/s10298-007-0232-8
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DOI: https://doi.org/10.1007/s10298-007-0232-8
Mots clés
- Complémentation en calcium
- Résorption de la masse osseuse
- Biodisponibilité du calcium
- Hormone parathyroïde intacte
- Cross laps