Situations that typically call for extra caution include: Complex medical histories Pregnancy or breastfeeding Active cancer or history of certain cancers, depending on individual context Significant cardiovascular or clotting risk factors People taking multiple medications that could complicate the picture This is not meant to scare anyone
doi: 10.3390/antiox12010160 196 ChiuP-SLaiS-C
However, their effects on the body are often extreme and come with a high risk of adverse side effects
Dasmahapatra, University of Mississippi, United States Reviewed by Sarah Scalercio, Instituto de Cincia e Tecnologia em Biomodelos (ICTB), Brazil Wen-Xiang Liu, Capital Medical University, China Updates Copyright 2025 Jiang, Han, Qiao and Ren
You have a history of kidney stones (high-dose Vitamin C can be contraindicated)