Some pre-workout supplements contain harmful substances and such high amounts of caffeine that there may be health risks. This is evident from the analysis of 27 supplements by the Netherlands Food and Consumer Product Safety Authority (NVWA). These are powders and pills that athletes take before exercising. These products promise more energy, focus, and endurance. They are becoming increasingly popular but can have harmful effects.
In 8 of the 27 examined supplements, harmful substances were found. In 3 cases, these were the banned substances yohimbine and rauwolscine. The sale of these products has been immediately stopped, and the sellers have been fined.
In 5 other supplements, there were substances that are not banned but can be harmful in high doses. These substances are not always listed on the label. Earlier, the Bureau Risicobeoordeling en Onderzoek (BuRO) advised the then Minister for Medical Care and Sports to include such substances in a national list of unsafe substances.
Caffeine
All examined supplements contained caffeine. According to the European Food Safety Authority (EFSA), it is safe for adults to consume a maximum of 200 milligrams of caffeine at a time. In 18 examined supplements, this safe amount is exceeded if consumers use the recommended dose on the packaging. In 9 cases, this also exceeds the safe daily amount of a maximum of 400 milligrams of caffeine. Especially if someone also uses other caffeine-containing products, such as coffee or energy drinks, risks may increase. Consuming large amounts of caffeine can lead to symptoms such as headaches, high blood pressure, restlessness, and palpitations. There is no legal limit for caffeine in supplements.
Advice to Consumers
The NVWA advises to be critical when purchasing pre-workouts and using them. For example, by checking the ingredients and considering possible health risks. Caffeine and other ingredients can enhance each others effects. This effect may be even greater when using more than one supplement. Furthermore, there may be interactions with medications, potentially leading to serious health consequences.
Complaints?
Consumers who experience complaints after using a supplement are best advised to contact their doctor and indicate which supplements they have taken. Additionally, side effects can be reported to Adverse Effects Centre Lareb. Consumers can report suspicions of unsafe supplements to the NVWA.
More Information
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