A supplement is a product designed to add ingredients to the diet, such as vitamins, minerals, botanicals, or amino acids. This essential guide to supplements is designed to help you think clearly about what is available, what to consider when evaluating options, and how to approach decision-making in a structured way. You will learn about categories of nutrients offered as supplements, how to identify credible information, and how to distinguish between marketing claims and evidence-based information. The goal is to equip you with a practical framework for evaluating supplements rather than relying on informal recommendations. Choosing evidence-based brands involves looking for transparency and accountability. Favor products that publish clear information about ingredient sources, manufacturing practices, and quality controls. Third-party verification or certification from independent organizations—such as USP or NSF International—can be helpful indicators. Check the label for batch numbers, expiration dates, and a complete ingredient list, including any inactive ingredients. Be cautious of vague claims or statements that cannot be independently verified. Safe dosages and usage focus on following the directions on the product label and avoiding unnecessary overlap with other products. Consider how your total intake from different sources is affected, and be aware that some nutrients can interact with medical treatments or conditions. If you are taking prescription medications or have a medical context, consult a qualified professional before starting any supplement. Store and handle products as recommended to maintain their quality and integrity. Practical steps and resources help you apply this guidance. Start by inventorying current products, reading labels carefully, and documenting your decisions. Rely on reputable sources for information and seek personalized guidance when appropriate. This page provides a framework for comparing options, assessing evidence, and making responsible choices about supplement use.
