So I've always known that alcohol depletes your body of nutrients, particularly thiamine and electrolytes. It also can hinder absorption of nutrients and mess with blood sugar. As a result long term alcoholics will get brain or liver disorders that are actually caused by their chronic malnutrition.

Something i never thought of is that other drugs can do this as well, including prescription medications.

Does anyone have information on various drugs and the potential nutritional issues they can cause? Does marijuana have an effect like this? What about psych meds such as SSRIs that so many people take?

Any information about alcohol or any drugs and nutrition would be useful.