Can excessive intake of vitamin c about 1000 mg limcee chewable tablets can cause sleeplessness? Please help I'm not feeling sleepy yet its 4: 30 am now I had taken one tablet in noon and one right before sleeping but I had slept in noon.

Dr. Vaishali RanaHomeopath16yrs exp

89% (743 ratings)

Ask Free Question

Yes . Long-term use of large doses (more than 1 g) can cause side-effects such as headache, increased CNS excitability, insomnia, nausea, vomiting, diarrhea and gastritis . 

1 person found this helpful

Dr. Jagtap T NGeneral Physician38yrs exp

90% (878 ratings)

Ask Free Question

United States vitamin C recommendations 60 mg/day: Health Canada 2007 60–95 milligrams per day: United States' National Academy of Sciences. 500 milligrams per 12 hours: Professor Roc Ordman, from research into biological free radicals. 3,000 milligrams per day '(or up to 30,000 mg during illness)' the Vitamin C Foundation. 6,000–12,000 milligrams per day: Thomas E. Levy, Colorado Integrative Medical Centre. 6,000–18,000 milligrams per day: Linus Pauling's personal use. Your sleeplessness may be due to worry as to what will happen now! 

1 person found this helpful