We hear a lot about the importance of vitamin A, vitamin C, and those good-for-you B vitamins, but it’s not so often we hear about another vitamin that scientists believe may also play a crucial role in maintaining superior health throughout life. These days, however, new research into the remarkable health benefits of vitamin D is beginning to change all of that.  

Vitamin D directly affects more than 200 genes in the body, and studies show that it plays a significant role in stimulating a healthy immune response. In fact, a new study conducted by a team of British and Canadian scientists links too little vitamin D in the diet with an increased risk of certain autoimmune diseases such as multiple sclerosis, Crohn’s disease and type 1 diabetes, as well as a higher risk of certain cancers.

Researchers say it has to do with the way vitamin D binds with specific chromosomes, but the problem comes from a widespread lack of vitamin D in the diet. About one billion people worldwide are vitamin D deficient, which may increase their susceptibility to certain diseases. And as people spend less time outdoors (the body produces vitamin D when the skin is exposed to sunlight), the problem is getting worse.

Because too little vitamin D can lead to a breakdown in overall health, many experts are now recommending steps to remedy the problem. Certain foods such as eggs and fatty fish contain vitamin D, and many fish oil supplements will include vitamin D to help make up for what’s lacking in the diet. Pregnant women and young children especially may benefit from a daily vitamin D supplement for preventative health, and spending at least 10 minutes in the sun each day is also recommended.

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After following more than a thousand South Florida beachgoers for a year, experts at the University of Miami discovered an alarming trend among people who frequently swam in the ocean. Compared to non-swimmers, those who spent time in the water experienced more gastrointestinal illness, more respiratory problems, and a significantly higher rate of skin disorders, even though beach areas were clean and the water unpolluted.

The culprit? Microscopic bacteria that thrive in the sub-tropical water temperatures. Such bacteria can enter the body through ingestion or skin contact and could potentially upset the healthy balance of bacteria in the digestive tract, which is essential for optimal digestion and immune function.

Experts warn that the harmful bacteria may pose a particular threat for children as well as older adults who may be lacking in healthy gut bacteria, and recommend taking the following precautions if planning a day at the beach:

• Avoid swallowing ocean water.
• Do not swim if you are ill, have diarrhea or open wounds.
• Shower and wash your hands before and after swimming.
• Take children on frequent bathroom breaks/diaper changes.

Research also shows that taking a daily high-potency probiotic supplement can help boost the numbers of good bacteria in the gut and help ward off potential harmful invaders. As a general rule, adults should look for supplement with at least 15 billion active cultures per once-daily serving.

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