Alcohol Like coffee, even alcohol acts as a dehydrating agent. With the consumption of alcohol, our body decreases its producing anti- diuretic hormone. Hence, our body will now lose more fluids than normal because of the increased tendency to urinate. In case of over intake of alcohol, people tend to vomit which adds to the problem to the problem of dehydration further. Also, alcohol has long lasting effects which can disable the body from functioning at its best. The best solution would be consumption of electrolyte solutions that replaces the sodium and potassium that was lost due to the alcohol consumption. If you are an alcoholic and it is absolutely necessary to drink then it is advisable to alternate alcoholic beverages with water.