In general, most of our vitamins can be taken together, but it is essential to review the label directions to avoid any potential interactions. For instance, calcium and iron should not be taken simultaneously because calcium hinders iron absorption. Additionally, some vitamins might require consumption with food, while others should be taken on an empty stomach, necessitating separate intake. Regarding medications, certain supplements can help replenish nutrients depleted by prescription drugs, like CoQ10 with statin drugs. However, it is crucial to consult your doctor for guidance on the appropriate timing and combinations to ensure safety and optimal absorption. Your healthcare professional can provide personalized advice to support your specific needs.