You can definitely overdose on Vitamin C but it’s very unlikely to do so with only what you eat.
Overdosing may occur when taking supplements.
Since Vitamin C is water soluble our body will get rid of unnecessary excess via urine so there are no harmful effects of an overdose.
But taking too much will result in digestive issues, mainly diarrhea.
What is too much of Vitamin C?
It can be different for everybody. Theoretically, you can take as much as your bowels can handle – meaning that your body will signal there is too much of Vitamin C by inducing diarrhoea.
Recommended daily intake is 100-200mg but each one of us will have different needs of Vitamin C depending on the lifestyle we have.
Smoking, for example, extensively depletes Vitamin C.
If we exercise a lot we need a lot of Vitamin C for regeneration.
If we are ill it’s good to give our system extra Vitamin C as Vitamin C is highly concentrated in immune cells and is consumed quickly during an infection.
Higher doses of vitamin C, up to 2,000mg, are used to support the immune system (for athletes) or reduce the duration of the common cold.
It is claimed that taking 2,000mg up to five times a day to optimally reduce cold symptoms is not sufficiently tested and requires more evidence.
Try not to go overboard. Even though excess Vitamin C will be eliminated via urine taking much more than is needed may provide imbalance to your whole system. Your body still needs to get rid of the excess amount it can’t use meaning it has to activate quite a few resources to do that.
Why is Vitamin C essential to our health?
Can Vitamin C boost our immune system?
Can Vitamin C help with colds?