I take 5,000U every morning - big difference. From New Scientist:
Vitamin D supplements may prevent millions of winter infections
If everyone took vitamin D supplements, more than 3 million fewer people in the UK would have respiratory infections like colds or flu every year. That’s according to a new analysis of data from nearly 11,000 people.
Vitamin D is known to be important for bone and muscle health. Last year, Public Health England stated that people are not generally getting the recommended 10 micrograms of vitamin D a day from sunlight in winter. But whether vitamin D supplements can help has been a hot topic, with some arguing that benefits of taking these are uncertain.
The latest study pulled together data from 25 clinical trials, conducted in 14 countries. It concluded that supplements can help prevent acute respiratory tract infections, particularly among those who are deficient in vitamin D.
The most common respiratory tract infection is the common cold, but others include bronchitis, pneumonia, and infections of the sinuses or ears. At least 70 per cent of the population gets one or more respiratory infection in any given year.
But the study found that vitamin D supplements can cut the proportion of people getting such infections by 12 per cent. “Daily or weekly vitamin D supplements will mean 3.25 million fewer people would get at least one acute respiratory infection a year,” says Adrian Martineau, at Queen Mary, University of London, who led the study.
Interesting - I regularly take D, some baby aspirin and some multivitamins.
