I don’t think that Vitamin D gets enough credit for how important it is for our immune system to properly work, and in the fight against the flu and other viruses. Optimizing your vitamin D is perhaps is the #1 step to take to prevent the flu!!! Studies have shown that low levels of vitamin D could increase your risk of getting influenza. An estimated 70% of the population is deficient in vitamin D, and because the sun is the best source – Winter and Spring tend to be when it dips the lowest (it should come as no surprise that is when colds and flu spike too!). Vitamin D is very important for cancer prevention, and also shows some promise for asthma symptoms and several skin conditions too.
Vitamin D is very important for the immune system – without sufficient Vit D, our T cells (important immune cells) can’t be activated properly. This is important for fighting the flu, and also for prevention of cancer – it is estimated that 75% of breast cancers could be prevented simply by optimizing vitamin D levels. Vitamin D also is found to be effective in preventing and treating skin conditions like eczema, psoriosis, and even recurring infections like Staph, and MRSA as well. Other signs of deficiency can be muscle aches and pains, fractures, depression, blood sugar issues, and more.
According to studies optimal Vitamin D could also benefit asthma sufferers. Asthma makes kids particularly susceptible to getting more serious complications of flu and Enterovirus.
How to get it? Sunshine is your best source – which is why it is called the sunshine vitamin. But you can also supplement – make sure your supplement has the D3 form (cholecalciferol), which is better absorbed than D2 (ergocalciferol, which is a cheaper form, and also the kind added to milk).
How much to supplement? It depends. The right amount will depend on your blood levels of vitamin D, so it is a good idea to have your vitamin D levels checked this time of year. Ideal blood levels are between 40-65 ng/dl. If your levels are really low, your doctor might prescribe a high dose to quickly boost your levels. But generally, adults can very safely take 2,000- 2,500 IU daily, and studies show that 1,200 IU for kids ages 6-15 benefits the immune system. The RDA is 600 IU for kids, and 800 IU for adults, but many physicians and experts feel that those amounts are not high enough to get levels to where they need to be. Talk to your doctor or practitioner about getting your vitamin D checked, or ask how many IU that they recommend that you/your family supplements. Also – magnesium is needed for absorption, so make sure you are getting plenty of leafy greens, pumpkin seeds, raw cacao, nuts, or taking magnesium supplements (avoid the oxide form which is poorly absorbed).
Article written by Nutritionist Sara Vance, author of the book The Perfect Metabolism Plan A regular guest on Fox 5 San Diego, you can see many of Sara’s segments on her media page. She also offers corporate nutrition, school programs, consultations, and affordable online eCourses. Download her free 40+ page Metabolism Jumpstart eBook here.
©2015, all rights reserved. Sara Vance.
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