According to Dr Joseph Mercola and others, vitamin D deficiency may actually be behind your winter flu.
As a result, researchers have begun examining if increased vitamin D might make an effective flu vaccine, and, as it turns out, it does!
n fact, the research found several notable returns:
- People with the lowest vitamin D levels show significantly more colds and/or cases of the flu.
- For people with the lowest vitamin D levels, taking a vitamin D supplement cut the risk of respiratory infection by 50% – though researchers also noted that vitamin D was better absorbed through sunlight.
- Vitamin D proved slightly more effective than the traditional flu vaccine (1 case prevented per 33 people vs 1 case prevented per 40 people), though this was more pronounced in trial participants with severe vitamin D deficiency.
- Vitamin D is significantly better absorbed from sun exposure than from supplements.
- Mounting research suggests vitamin D deficiency may actually be a major cause of influenza. People with the lowest vitamin D levels report having significantly more colds or cases of the flu
- Scientific review confirms vitamin D optimization boosts immunity and cuts rates of cold and flu. Among people vitamin D blood levels below 10 ng/mL, taking a supplement cut risk of respiratory infection by 50 percent
- To prevent influenza in one person, 40 people must receive the flu vaccine whereas one case of the flu can be prevented for every 33 people taking vitamin D. If you’re severely vitamin D deficient, vitamin D supplementation is 10 times more effective than the flu vaccine