On this episode of the Real Life Pharmacology Podcast, I cover some of the most common food and supplement drug interactions. The 3 G's can potentially increase the risk of bleeding in patients on anticoagulants and antiplatelets. I discuss what supplements these are. There are some vitamins that can cause drug interactions. Vitamin C is a supplement that can alter the absorption of some medications. Metal cations like iron can bind certain medications and reduce absorption. I discuss which medications are most likely to be affected.