Vitamin C Megadosing side effects
Across 3 first-hand reports, people mentioned a side effect 7 times (about 233 per 100 reports). The most common: stomach issues, kidney stones, heartburn. User reports show what people notice — they can't tell you whether Vitamin C Megadosing is safe for you.
Reported side effects
stomach issues2
kidney stones1
heartburn1
nausea1
vomiting1
diarrhea1
In their own words
“Vitamin C megadosing for a cold or the flu. My digestive tract hates it, but the cold/flu is gone inside 6 hours.”