Vit D Heart Study Photo (IMAGE) Intermountain Healthcare Caption Low levels of Vitamin D have been shown to be associated with a higher risk of having a cardiac event, like a heart attack or stroke. For this reason, treatment by Vitamin D pills or injections are being investigated as a possible preventative method in these patients. However, two new studies from Intermountain Health in Salt Lake City have found that current dosing recommendations are not helping patients achieve optimal Vitamin D levels, suggesting that trials looking into the effectiveness of Vitamin D treatment to prevent cardiac events were not using appropriately sufficient doses, leading to inaccurate results. Credit Intermountain Health Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.