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.
One tablespoon of cod liver oil may contain as much as 14,000 international units of vitamin A. The upper tolerable intake, or the maximum amount you should consume in one day, is 10,000 international units. Vitamin A toxicity leads to nausea, headache, fatigue, dizziness, and joint pain.