Calcium carbonate is the most common and least expensive calcium supplement. It can be difficult to digest and causes gas in some people. Taking magnesium with it can help to prevent constipation. Calcium carbonate is 40% elemental calcium. 1000 mg will provide 400 mg of calcium. Take this supplement with food to aid in absorption. In some calcium supplements based on calcium carbonate, Vitamin D is used as an addition to aid in absorption.
Cystic fibrosis is a hereditary disease that causes the body to produce thick and sticky mucus that can clog the lungs and obstruct the pancreas. This genetic disease can be life threatening, and affects an estimated 30,000 children and adults in the US, with around 1,000 new cases diagnosed each year.
Understanding What Causes Cystic Fibrosis. The cause of cystic fibrosis (CF) is a defect in a gene called the cystic fibrosis transmembrane conductance regulator (CFTR) gene. This gene makes a protein that controls the movement of salt and water in and out of the cells in your body.he cause of cystic fibrosis (CF) is a defect in a gene called the cystic fibrosis transmembrane conductance regulator (CFTR) gene.