Hemani Cod Liver Oil is extracted from the livers of Atlantic cod. It is commonly taken as a dietary supplement and is packed full of nutrients. It is one of the best sources of omega 3 fatty acids (EPA and DHA), and it contains relatively high amounts of vitamin A and vitamin D. Taking cod liver oil may help control blood sugar in people with diabetes during pregnancy. This might help to prevent complications at birth. It may take up to 12 weeks for benefit. Taking cod liver oil doesn't seem to help with blood sugar control in people with type 1 diabetes. An omega-3 fatty acid is highly recommended for people who want to lose weight but excess consumption might show an opposite result.