Therefore, there is a growing interest in exploring other options and natural remedies to combat the common cold.
That means some supplement products may not contain what the label says.
Consult your healthcare provider, registered dietitian nutritionist (RD or RDN), or pharmacist for further guidance.

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Does Vitamin C Help Prevent or Treat Colds?
Vitamin C supplements may help totreatcolds.
However, it is unclear whether they can prevent colds.
Vitamin C deficiency generally decreases immune function and increases your risk of infections.
While vitamin C may shorten the duration and intensity of colds, the optimal dosage is unknown.
However, clinical research has suggested1 to 4 grams per day (g/day)ofvitamin Cforfive daysdemonstrated effectiveness.
What Is Vitamin C?
How Much Vitamin C Do I Need?
These factors include the following:
Excessivephysicalorpsychological stressalsoincreasesvitamin C requirements.
No supplement is intended to treat, cure, or prevent disease.
You may wish to avoid specific vitamin-C-rich fruits and vegetables if you are allergic to them.
This includes prescription and over-the-counter medications, vitamins, and herbal supplements.
Vitamin C may prevent the common cold only in a particular population group.
The use of vitamin C after the onset of the common cold for treatment is unclear.
Speak with your healthcare provider if you have further questions.
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