Delek Group Ltd. is engaged in gas exploration and production in Israel and abroad through investee companies and partnerships, as well as in the field of marketing of fuel products in Israel, and has holdings in a number of other activities, the main of which is the insurance and finance activity in Israel.
Long-Term Calcium and Vitamin D Supplement Use May Be Linked to Increased Risk of Kidney Stones. June 26, 2012 â Calcium and vitamin D supplements are associated with high calcium levels in the blood and urine, which could increase the risk of kidney stones, a new study ...
1 Most kidney stones are calcium stones, usually in the form of calcium oxalate. 2  Oxalate is a naturally occurring substance found in food. 3  Some fruits and vegetables, as well as nuts and chocolate, have high oxalate levels. 4  Your liver also produces oxalate.nowing the type of kidney stone helps determine the cause and may give clues on how to reduce your risk of getting more kidney stones. Types of kidney stones include: 1  Calcium stones. 2  Most kidney stones are calcium stones, usually in the form of calcium oxalate.