If you take care to have a balanced diet and a healthy lifestyle, a deficiency of important biofactors can be prevented most of the time. The official limits and consumption indications for vitamins, minerals, and trace elements are based primarily on the average need of healthy people. Individually, however, the need for biofactors can be significantly higher owing to many factors such as age, gender, ethnic origin, sports effort, lifestyle (alcohol and nicotine consumption), taking certain medications, etc. Also, in special living situations, the body partially develops a higher need for a certain period or is unable to absorb the biofactors supplied to it very well. In these cases, a regular diet often reaches its limits and deficiencies can occur that must then be treated with the needed medications. In many cases, the risks are known and preventive measures may have to be considered.