On average, it takes about one hour for your body to break down one unit of alcohol. However, this can vary, depending on: 1  your weight. 2  whether you're male or female. 3  your age.  how quickly or slowly your body turns food into energy (your metabolism)
Because cod liver oil contains quite a bit of vitamins D and A, it is also possible that side effects can occur due to toxicities from either of these vitamins. There is some concern that long-term use of cod liver oil could increase the risk of skin cancer.
Some of the other known benefits of cod liver oil are mostly present thanks to the polyunsaturated omega-3 fatty acid that it contains in high levels. This essential fatty acid prevents heart and vascular diseases and reduces the risk of developing any of the many diseases caused by being over weight.