SchizoAg said:
KidDoc said:
SchizoAg said:
KidDoc said:
Clearing up some bad info over the weekend:
Vitamin C and cold medication will do nothing to prevent pneumonia from any source.
That's not what I said.
Taking vitamin C daily has been shown to reduce the duration and severity (but not the incidence) of the common cold. Assuming the mechanism is by "boosting the immune system" (as advertised in non-FDA-approved wording on the bottle), it is logical to infer that it would help with other viruses, too.
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Nothing is really proven to prevent pneumonia but malnutrition and immobility are significant risk factors as is smoking and asthma.
Being in a weakened state due to having been sick recently is surely a risk factor. So minimizing your sickness before you get the coronavirus actually will improve your odds of not getting pneumonia.
I don't know the difference between pneumonia, pneumonitis, bronchitis, etc. But I know that allowing yourself to cough incessantly, without treating the symptom, can lead to inflammation (some sort of -itis).
And based on personal experience, I believe that aggressively medicating the early symptoms of a cold (e.g. runny nose with pseudoephedrine) can slow its spread, giving the immune system time to work before it spreads to other body systems (throat, lungs).
Did you read the study you linked?
<snip>
The failure of vitamin C supplementation to reduce the incidence of colds in the general population indicates that routine vitamin C supplementation is not justified, yet vitamin C may be useful for people exposed to brief periods of severe physical exercise. Regular supplementation trials have shown that vitamin C reduces the duration of colds, but this was not replicated in the few therapeutic trials that have been carried out. Nevertheless, given the consistent effect of vitamin C on the duration and severity of colds in the regular supplementation studies, and the low cost and safety, it may be worthwhile for common cold patients to test on an individual basis whether therapeutic vitamin C is beneficial for them. Further therapeutic RCTs are warranted.
<snip>
Did you read the second half of your excerpt, the part that you didn't boldface? The part where it says regular vitamin C supplementation consistently reduces the duration and severity (but not the incidence) of the common cold, just like I said above?
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Also your personal experience does not equate to medical evidence or fact. Feel free to medicate yourself out the wazoo but all the cough & cold medications have been shown to briefly improve symptoms in patients over 4 years or age but they have never been shown to decrease the risk of series morbidity like pneumonia with any viral infection.
Since you're apparently well-versed in all research on the topic, it shouldn't be hard for you to link, for example, a study in which the question was investigated with negative results. For my part, I can't find anything, at least not using the key phrase "series morbidity". Either that is an extremely under-studied topic (in which case my personal experience actually is the best medical evidence available), or there is a more common term for it.
The treatment of shock with vitamin C + steroids is interesting but that is totally different from what is being discussed which is prevention or mitigation of common URI with OTC vitamin C. The evidence just isn't there and experts do not routinely recommend it with the caveat that it is not dangerous or expensive so if patients want to use placebo go ahead.
For OTC cough & cold there is no evidence that it prevents pneumonia. There are likely unpublished studies sponsored by the manufacturers that were shredded because they did not like the results. This is one of the major problems with all drug research in the USA, the people running the study can just publish favorable studies and shred the ones that do not support their product. If mucinex or nyquil had a study proving their drug could prevent the march from URI to pneumonia you know it would be ALL over their advertising!
Like I said feel free to do what you want to your body but putting out statements like yours as accepted medical "fact" is just not a good idea to the casual reader!
The Summary from uptodate:
Vitamin C Vitamin C is often touted as a natural remedy for the common cold. A 2013 meta-analysis of 29 trials (n = 11,306) showed a small but significant 8 percent reduction in the duration of cold symptoms in adults regularly taking vitamin C supplements (at least 200 mg/day) [
30]. This reduction was of uncertain clinical relevance. The meta-analysis also showed that vitamin C given therapeutically after symptom onset did not reduce symptom duration or severity.
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