A 49-year-old member asked:
Is 1000mg vitamin c too much for a day?
1 doctor answer • 1 doctor weighed in

Dr. Doina Marinaanswered
55 years experience
Yes. : Recommended dietary allowance (rda) for vitamin c in mg/day
infants 0-6 months: 40
7-12 months: 50
children: 1-3 years: 15
4-8 years: 25
9-13 years: 45
girls: 14-18 years: 65
boys: 14-18 years: 75
men: age 19 and older: 90 women: age 19 and older 75 smokers or if around secondhand smoke at any age, add 35 mg/d. Higher amounts of vitamin c are needed during pregnancy and breastfeeding.
Created for people with ongoing healthcare needs but benefits everyone.
4.8k viewsAnswered >2 years ago
Similar questions
A 30-year-old member asked:
Is 1000mg vitamin C a lot?
2 doctor answers • 4 doctors weighed in

Dr. Thomas Nameyanswered
Rheumatology 50 years experience
Controversial!: I believe 300mg per day is enough. Some physicians believe that 1000mg/day is ok. I disagree!
Created for people with ongoing healthcare needs but benefits everyone.
4.8k viewsAnswered >2 years ago
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A 31-year-old male asked:
I take 1000mg Vitamin C tablets a day?
1 doctor answer • 2 doctors weighed in

Dr. Lauren Bickelanswered
Specializes in Family Medicine
More info: If you are asking if it is ok to take 1000mg Vitamin C tabs, yes, that is ok for most people (I take them myself actually). Our bodies get rid of the Vitamin C we don’t use so it is impossible to overdose, though some people get stomach irritation with too much. VitC is a good antioxidant, helps immune system, & aids wound healing, though the best dose is uncertain.
Created for people with ongoing healthcare needs but benefits everyone.
62 viewsReviewed >2 years ago
A 48-year-old member asked:
Side effects of vitamin C at 1000mg a day - is that a lot?
1 doctor answer • 3 doctors weighed in

Dr. Randy Bakeranswered
Holistic Medicine 42 years experience
Usually none & no: Vitamin c is extremely safe. Excessive doses (usually over 5000 mg a day) can cause a laxative effect. Vit. C can interact with certain medications, esp. Coumadin (warfarin) (which interacts with everything!). Concerns that high doses of vit c can cause kidney stones are unproven, in fact there is no good evidence of harm from high doses of c. See http://lpi.Oregonstate.Edu/infocenter/vitamins/vitaminc/.
Created for people with ongoing healthcare needs but benefits everyone.
5.8k viewsReviewed >2 years ago
A 31-year-old member asked:
What can happen if you have too much vitamin c?
1 doctor answer • 2 doctors weighed in

Dr. Heidi Fowleranswered
Psychiatry 27 years experience
Vitamin C: Taking excessive amounts of Vitamin C can cause symptoms such as nausea, vomiting, loose stools, heartburn, abdominal cramping, bloating,headache and insomnia. It may be associated with oxalate renal calculi. It can lead to hemolytic anemia in patients with g6pd deficiency. Large doses of Vitamin C are contraindicated w g6pd deficiency, renal insufficiency, oxalate renal calculus formers, chronic
Created for people with ongoing healthcare needs but benefits everyone.
3.8k viewsReviewed >2 years ago

Dr. Heidi Fowler commented
Psychiatry 27 years experience
Provided original answer
hemodialysis or in some forms of iron overload.
Aug 8, 2014
Last updated Apr 18, 2021
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