If you eat a healthy diet, you probably don’t need to take supplements at all. Still, there are solid arguments for taking at least a few supplements; and in special categories such as pregnancy and over-65 years of age, you are well-advised to take specific supplements.[1]
Here is a list of suggestions with attached rationales. Clearly, you need to adjust this list to your circumstances and consult with a medical practitioner, especially if you have a specific condition or are considering megadoses.
Key Supplements