Meta-analysis on vitamin C and the common cold in children may be misleading

This report describes severe problems in the meta-analysis on vitamin C and the common cold: Vorilhon P, Arpajou B, Vaillant Roussel H, Merlin É, Pereira B, Cabaillot A. Efficacy of vitamin C for the prevention and treatment of upper respiratory tract infection. A meta-analysis in children. Eur J Clin Pharmacol. 2019 Mar;75(3):303-311. doi: 10.1007/s00228-018-2601-7. Further problems in that meta-analysis are described in: https://hdl.handle.net/10138/333365. The meta-analysis by Vorilhon et al. was later retracted: Vorilhon P, Arpajou B, Roussel HV, Merlin É, Pereira B, Cabaillot A. Retraction Note: Efficacy of vitamin C for the prevention and treatment of upper respiratory tract infection. A meta-analysis in children. Eur J Clin Pharmacol. 2021 Jun;77(6):941. doi: 10.1007/s00228-021-03150-9