A health supplement is an item that is intended to improve the health and well-being of the person. They can be either dietary supplements, which are included in the diet or active supplements, which are consumed directly. Dietary supplements typically consist of natural ingredients and are not meant to treat, diagnose, or stop any illness. Supplements that are active can, however assist in improving your health in multiple ways. They can help boost your immune system and boost energy levels or improve your cardiovascular health.