Researchers at St Mary’s University Twickenham have cautioned that intravenous infusions containing vitamins and amino acids show no solid proof of benefit and may carry notable health risks, especially when used routinely or outside clinical needs. The observation appears in a piece in BMJ Sports Medicine.
The trend toward IV nutrient therapy has gained traction among professional athletes. Some sports bodies do not classify these infusions as doping, which has contributed to their uptake in elite circles. Even when there is no strong evidence of improved performance or faster recovery for healthy individuals, many athletes pursue IV drops in hopes of quelling fatigue and accelerating the return to competition. This practice persists despite uncertainties about long-term outcomes.
Researchers argue that healthy athletes receiving IV infusions may face higher infection risks and may experience surges in nutrient levels beyond normal physiological ranges. These super-physiological concentrations could have unintended consequences that are not yet fully understood. The current body of studies has not demonstrated a clear advantage from vitamin injections for otherwise healthy people, and there is little longitudinal data on potential harms or benefits that might emerge over time.
IV therapies originally target serious medical conditions such as severe anemia or acute dehydration, where rapid restoration of fluids and nutrients can be life-saving. In athletic settings, experts urge caution, highlighting that the perceived benefits may be outweighed by costs and potential adverse effects. The emphasis is placed on evidence-based strategies for performance and recovery, including balanced nutrition, adequate hydration, consistent training, quality sleep, and appropriate recovery protocols. The overarching message stresses prudent use and careful consideration of whether an IV infusion is truly warranted in each individual case, with a noted recommendation to prioritize whole foods and dietary patterns over injections (BMJ Sports Medicine).