Blogs
How Much Vitamin C is "Appropriate"? Safe Dosage Based on Evidence and Risk of Overdose
Is it true that 'Vitamin C is water-soluble, so it's okay to take as much as you want'? We derive the optimal intake based on pharmacokinetics data and the latest evidence on risks such as kidney stones and gastrointestinal symptoms.
January 27, 2026
Why Does Vitamin C Improve Vascular Endothelial Function? Deep Dive into Molecular Mechanisms
The deep relationship between Vitamin C and vascular endothelium cannot be explained solely by 'being an antioxidant vitamin'. Explaining the mechanism focusing on eNOS uncoupling and BH4 stabilization.
January 23, 2026
Does Vitamin C Improve Endothelial Function? Reading Short-term and Long-term Evidence from an FMD Perspective
Summarizing key points on the effects of short-term (single dose to hours) and long-term (weeks+) Vitamin C (ascorbic acid) intake on vascular endothelial function from representative trials and meta-analyses.
January 4, 2026