Principal investigator: Prof. Nachum -Vaisman, Director of the Clinical Nutrition Unit, Sourasky Medical Center, Tel-Aviv.
To study the rate of gastrointestinal absorption of amorphous calcium carbonate versus crystalline calcium carbonate in post-menopausal women
- A randomized, double-blind crossover study
- The study included 13 post-menopausal women, with no history of severe illness or vitamin D deficiency.
- The study compared calcium absorption using the precise and accurate dual-stable isotope technique, of the most advanced technology, which compared the true fractional calcium absorption from each calcium source.
- Absorption of amorphous calcium carbonate in the intestine is 2-folds higher than that of crystalline calcium carbonate — when the calcium is taken after a meal
- A single case showed that when taken on an empty stomach, amorphous calcium carbonate absorption in the intestine was 4.6-folds higher than crystalline calcium carbonate
- Post-menopausal women whose calcium absorption was significantly low when taking crystalline calcium carbonate (for example, those with a lower BMI) showed better calcium absorption after consuming amorphous calcium carbonate.
This study was submitted for publication in a scientific peer-reviewed journal.
A full abstract and a link to the published article will be posted after publication