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 ...
Types of kidney stones. Kidney stones can develop for a number of reasons. The causes of the four main types of kidney stone are outlined below. Calcium stones. Calcium stones are the most common type of kidney stone and form if there's too much calcium in the urine, which can be due to: