Tag Archives: Vitamin D

Older men at risk of osteoporosis – Harvard

Because three out of four cases of osteoporosis are women, most people consider it a women’s disease,  especially men. However, as I reported here, after the age of 50 men are as likely to get osteoporosis as prostate cancer. More to the point, older people of both sexes have great vulnerability to it.

Here’s what Harvard Health Publications has to say:

Don’t think men need to worry about osteoporosis? Think again. In fact, about one in four men older than 50 will break a bone due to osteoporosis during their lifetime, according to the National Osteoporosis Foundation.

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How can men protect themselves and lower their risk of osteoporosis? Here are some strategies: Continue reading

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Two keys to strong bones … Harvard

Although bone-weakening osteoporosis is quite common among older people, it isn’t an inevitable part of aging. There’s a lot you can do to shield your bones from this disease.

While it is true that women account for most cases of osteoporosis. I think the fact that they outlive men, and the disease usually hits after late 50’s, because women outlive us, a disproportionate number of women get the disease. The International Osteoporosis Foundation says that worldwide, 1 in 3 women over age 50 will experience osteoporotic fractures, as will 1 in 5 men aged over 50.

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The best insurance against osteoporosis is building the highest bone density possible by your 30s and minimizing bone loss after that. But if you’re already in midlife or beyond, there is still much you can do to preserve the bone you have and perhaps even to replace lost bone. Daily weight-bearing exercise, like walking, is the best medicine. Getting enough calcium and vitamin D are two other critical strategies for keeping bones strong.

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Low Vitamin D may raise bladder cancer risk – Study

Vitamin D deficiency is associated with an increased risk of developing bladder cancer, according to a systematic review of seven studies led at the University of Warwick.

Five out of the seven studies linked low vitamin D levels to an increased risk of bladder cancer.

The researchers then looked at the cells that line the bladder, known as transitional epithelial cells, and found that these cells are able to activate and respond to vitamin D, which in turn can stimulate an immune response.

 

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Sources of Vitamin D

This is important because the immune system may have a role in cancer prevention by identifying abnormal cells before they develop into cancer. Lead author of the study Dr. Rosemary Bland said, “More clinical studies are required to test this association, but our work suggests that low levels of vitamin D in the blood may prevent the cells within the bladder from stimulating an adequate response to abnormal cells. Continue reading

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Vitamin D engages longevity gene to increase lifespan – Study

I  have written about the benefits of Vitamin D a number of times. You can check some of the links at the end of this post to read further. Now comes Neuroscience News with a report on  its possible impact on increased longevity.

Research in C. elegans shows the popular supplement engages longevity genes to increase lifespan and prevent the accumulation of toxic proteins linked to many age-related diseases.

A simple Google search for “what does vitamin D do?” highlights the widely used dietary supplement’s role in regulating calcium absorption and promoting bone growth. But now it appears that vitamin D has much wider effects — at least in the nematode worm, C. elegans. Research at the Buck Institute shows that vitamin D works through genes known to influence longevity and impacts processes associated with many human age-related diseases. The study, published in Cell Reports, may explain why vitamin D deficiency has been linked to breast, colon and prostate cancer, as well as obesity, heart disease and depression.

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“Vitamin D engaged with known longevity genes – it extended median lifespan by 33 percent and slowed the aging-related misfolding of hundreds of proteins in the worm,” said Gordon Lithgow, PhD, senior author and Buck Institute professor. “Our findings provide a real connection between aging and disease and give clinicians and other researchers an opportunity to look at vitamin D in a much larger context.” Continue reading

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Vitamin D – Do you get enough?

Vitamin D is considered by some to be the rock star of the vitamin world. To read further on its benefits check out: Vitamin D and Cognitive Function, Vitamin D Deficiency May be Linked to Heart Disease, Vitamin D Deficiency May Compromise Immune Function, Calcium and Vitamin D Help Hormones Help Bones, Vitamin D Improves Mood and Blood Pressure in Women with Diabetes, Vitamin D and Your Body – Harvard, What are the ABC’s of Vitamins?

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Tony

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Chemical Exposure Linked to Lower Vitamin D Levels – Study

Vitamin D has been called the rock star of vitamins. For an idea about all the good things our bodies get from vitamin D, check out these posts: How good is Vitamin D for you? Infographic, Vitamin D and your body – Harvard.

Exposure to bisphenol A (BPA) and other endocrine-disrupting chemicals (EDCs) may reduce levels of vitamin D in the bloodstream, according to a new study published in the Endocrine Society’s Journal of Clinical Endocrinology & Metabolism.

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The study is the first to find an association between EDC exposure and vitamin D levels in a large group of U.S. adults. EDCs are chemicals or mixtures of chemicals that can cause adverse health effects by interfering with hormones in the body. The Society’s Scientific Statement on EDCs examined more than 1,300 studies that found links between chemical exposure and health problems, including infertility, obesity, diabetes, neurological problems and hormone-related cancers. Continue reading

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Beyond Statins and CoQ10: How about Vitamins D and K2?

Some nice insights here on Statin drugs and vitamin depletion.

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Vitamin D May Help Prevent and Treat Diseases Associated with Aging

Researchers reviewed evidence that suggests an association between vitamin D deficiency and chronic diseases associated with aging such as cognitive decline, depression, osteoporosis, cardiovascular disease, high blood pressure, Type 2 diabetes and cancer.

Vitamin D is really the rock star of vitamins. I have written about it before:
Vitamin D May Help Prevent and Treat Diseases Associated with Aging
Low Vitamin D Predicts More Severe Strokes, Poor Health Post-stroke
Adding Vitamin D for the Winter Months – Guest Post – Kelli Jennings
How Good is Vitamin D For You? – Infographic
Link Between Vitamin D and Dementia Risk Confirmed

Tony

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Vitamin D may play a vital role in the prevention and treatment of diseases associated with aging, according to researchers at Loyola University Chicago Marcella Niehoff School of Nursing (MNSON). These findings were published in the latest issue of the Journal of Aging and Gerontology.

Researchers reviewed evidence that suggests an association between vitamin D deficiency and chronic diseases associated with aging such as cognitive decline, depression, osteoporosis, cardiovascular disease, high blood pressure, Type 2 diabetes and cancer.

“Vitamin D deficiency is a common, serious medical condition that significantly affects the health and well-being of older adults,” said Sue Penckofer, PhD, RN, study author and full professor, MNSON.

Older adults are at risk for vitamin D deficiency due to diet, reduced time outdoors and poor skin absorption of the nutrient. With the number of people ages 65 and older expected to more than double from 2012 to 2060, the problem…

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Low Vitamin D Predicts More Severe Strokes, Poor Health Post-stroke

“It’s too early to draw firm conclusions from our small study, and patients should discuss the need for vitamin D supplementation with their physician,” Henninger said. “However, the results do provide the impetus for further rigorous investigations into the association of vitamin D status and stroke severity. If our findings are replicated, the next logical step may be to test whether supplementation can protect patients at high risk for stroke.”

As you can see by the posts I have written about Vitamin D previously, it is a rock star of the vitamin world:
How Good is Vitamin D For You? – Infographic
Link Between Vitamin D and Dementia Risk Confirmed
Study Suggests Association between Vitamin D Levels and Cognitive Function
Vitamin D Improves Mood and Blood Pressure in Women with Diabetes
Vitamin D and Your Body – Harvard.

Tony

Cooking with Kathy Man

Stroke patients with low vitamin D levels were found to be more likely than those with normal vitamin D levels to suffer severe strokes and have poor health months after stroke, according to research presented at the American Stroke Association’s International Stroke Conference 2015.

Low vitamin D has been associated in past studies with neurovascular injury (damage to the major blood vessels supplying the brain, brainstem, and upper spinal cord).

“Many of the people we consider at high risk for developing stroke have low vitamin D levels. Understanding the link between stroke severity and vitamin D status will help us determine if we should treat vitamin D deficiency in these high-risk patients,” said Nils Henninger, M.D., senior study author and assistant professor of neurology and psychiatry at University of Massachusetts Medical School in Worchester.

Henninger and colleagues studied whether low blood levels of 25-hydroxyvitamin D, a marker of vitamin D…

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8 Reasons to Eat More Mushrooms

“Mushrooms are miniature pharmaceutical factories, and of the thousands of mushroom species in nature, our ancestors and modern scientists have identified several dozen that have a unique combination of talents that improve our health,” says leading mushroom research, Paul Stamets, who has written six books about mushrooms.

Our Better Health

Diana Herrington   February 10, 2015

If you’re looking for a new food to boost your health and shake up your boring meal routine, mushrooms might be it. With over 100 thousand species of mushroom-forming fungi and huge health benefits, the mushroom is a little-known superstar. We often sprinkle mushrooms on our salads or add them to our casseroles. Next time add a few more handfuls of this ingredient–or, better yet, make it the main entree! Including a little more mushroom to your favorite meal is a tasty and rewarding move.

There are:

  • 140,000 species of mushroom-forming fungi.
  • Close to 100 types of mushrooms being studied for their health benefits.
  • A small number found to be very beneficial for boosting your immune system.

“Mushrooms are miniature pharmaceutical factories, and of the thousands of mushroom species in nature, our ancestors and modern scientists have identified several dozen that have a unique…

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6 Benefits of Exercising in Nature – Infographic

I was happy to discover this infographic as it meets a bias of mine. For some reason being cooped up in the health club really turns me off. That is not to say that I have anything against exercise. I just don’t like doing it cooped up in the health club. When there, I always feel like I am a prisoner forced to do these many reps. It is hard to enjoy being there.

On the other hand, just being outdoors feels good to my soul.

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Last but not least I am lucky enough to live by Lake Michigan, so I have the magnificent body of water as a backdrop for my bike riding, walking, running, etc. Check out A Beginner’s Guide to Blue Mind to learn more about the benefits of being around water. Also, if you related to this post, check out Reasons to Spend More Time Outside which I filed minutes after I posted this.

Tony

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Adding Vitamin D for the Winter Months – Guest Post – Kelli Jennings

Regular readers know that I am a nearly daily bike rider here in Chicago. As such I read some cycling blogs, too. One of my faves is Loving the Bike.

And, one of that blog’s regular contributors is Kelli Jennings, an Expert Sports Nutritionist who writes Ask the Sports Nutritionist.

Kelli is not only a world class athlete, but also a first rate nutritionist who writes clearly and accurately about her healthy and intelligent eating.

She recently wrote an item Adding Vitamin D for the Winter Months that I thought would interest you. Most importantly, you do not have to be a cyclist to benefit from Kelli’s information. I have written about Vitamin D as beneficial to every person. These ideas should benefit you, too, whether you ride a bike or not.
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If you are out on your bike most days, you likely believe you get plenty enough sunshine to make plenty enough Vitamin D.  I get it.  I’m lucky enough to live in a state that boosts more than 300 days a year of sunshine.  So, how come so many of us are Vitamin D deficient?

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If you’ve never had your Vitamin D levels checked, you may be in for a surprise.  And, if you find your motivation and mood wavering and eventually diminishing each year in the cold-weather months, you may just find out why.

In fact, it’s not only an issue for athletes, but it’s estimated that at least 25-50% of adults in the United States are deficient in Vitamin D; which is a bit ironic, as it is the only vitamin that our bodies are able to produce (with adequate sunlight).  However, it may be this ability to produce it that gives us a false sense of optimism and a lack of urgency in eating Vitamin D food sources and supplementing.  There are many reasons why we become deficient, and even more reasons to make sure you’re not.

So, what are the implications for cyclists and how can you get enough?

It’s long been known that Vitamin D is important for the absorption of calcium, and therefore, for bone health.  In fact, it was historically thought that the main benefit of Vitamin D was to reduce risk of rickets.  In the last two decades, however, more and more research is finding that Vitamin D’s reach goes far beyond bones.  In fact, it has significant implications on overall health and wellness, respiratory infections, athletic performance, and mood.

Here’s what every cyclist needs to know:
Vitamin D for Athletic Performance:

Reduces Inflammation: After intense exercise, elevated levels of pro-inflammatory cytokines circulate throughout athletes’ bodies.  Vitamin D, along with omega-3 fats from fish oil, reduce the production of cytokines, while increasing the production of anti-inflammatory components.  This can improve recovery, reduce fatigue, and improve overall health.
Improves Immune Function: In studies, Vitamin D deficiency has been correlated with colds, influenza, and respiratory infections. On the other hand, adequate levels of Vitamin D trigger our immune system macrophage cells to release antibacterial peptides, which play a role in infection prevention.  If you want to stay well this Winter, get your Vitamin D.
Prevents Muscle Weakness and Fat Accumulation in Muscles:  Vitamin D deficiency is associated with elevated fat accumulation in muscles, which in turn reduces muscle strength and performance.  In at least one study, the deficiency and loss of muscle strength was demonstrated independent of muscle mass…muscle was actually displaced with fat AND weaker than it should be.  What’s more, there is evidence that supplementation of Vitamin D in deficient persons increases fast twitch muscle fibers in number and size, and reduces injuries (in athletes) and falls (in elderly).
Improves Overall Performance: Studies have shown a steady decline in performance in low-sunlight months, improved performance when athletes are exposed to UV rays (1950s), and peak performance when blood levels of 25 (OH) D are at or above 50 ng/mL.  What’s more, maximum oxygen uptake, or VO2 Max, drops in athletes in months when less UV rays reach the Earth, such as in late Fall months.
Vitamin D for Overall Wellness:
In addition to athletic performance, Vitamin D’s also important for:

Regulating Blood Pressure
Normalizing Blood Sugars and Insulin
Preventing Cancer, especially bladder cancer, breast cancer, colon cancer, ovarian cancer, prostate, and rectal cancer
Steady Moods and Prevention of Depression

Now that we know how important Vitamin D is, it’s no wonder that many experts believe the recommended amounts, and  “normal ranges” for lab values should be much higher than previously established.  But what other factors contribute to our seemingly inadequate intake and levels? Continue reading

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Link Between Vitamin D and Dementia Risk Confirmed

Dementia is one of the greatest challenges of our time, with 44 million cases worldwide – a number expected to triple by 2050 as a result of rapid population ageing. A billion people worldwide are thought to have low vitamin D levels and many older adults may experience poorer health as a result.

Vitamin D is indeed the rockstar of vitamins. I have posted on it numerous times:
How Good is Vitamin D For You – Infographic, Vitamin D Deficiency May Compromise Immune Function, Vitamin D Improves Mood and Blood Pressure in Women with Diabetes, Calcium and Vitamin D Help Hormones Help Bones, Vitamin D and Your Body – Harvard.

Tony

Cooking with Kathy Man

Vitamin D deficiency is associated with a substantially increased risk of dementia and Alzheimer’s disease in older people, according to the most robust study of its kind ever conducted.

An international team, led by Dr David Llewellyn at the University of Exeter Medical School, found that study participants who were severely Vitamin D deficient were more than twice as likely to develop dementia and Alzheimer’s disease.

The team studied elderly Americans who took part in the Cardiovascular Health Study. They discovered that adults in the study who were moderately deficient in vitamin D had a 53 per cent increased risk of developing dementia of any kind, and the risk increased to 125 per cent in those who were severely deficient.

Similar results were recorded for Alzheimer’s disease, with the moderately deficient group 69 per cent more likely to develop this type of dementia, jumping to a 122 per cent increased…

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How Good is Vitamin D For You? – Infographic

Vitamin D is the new rock star of the vitamin world. To read further on its benefits check out: Vitamin D and Cognitive Function, Vitamin D Deficiency May be Linked to Heart Disease, Vitamin D Deficiency May Compromise Immune Function, Calcium and Vitamin D Help Hormones Help Bones, Vitamin D Improves Mood and Blood Pressure in Women with Diabetes, Vitamin D and Your Body – Harvard, What are the ABC’s of Vitamins?

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What Can I Do To Prevent Osteoporosis?

Osteoporosis is a debilitating disease that affects the entire world population. The International Osteoporosis Foundation reports:

•    Worldwide, osteoporosis causes more than 8.9 million fractures annually, resulting in an osteoporotic fracture every 3 seconds.
•    Osteoporosis is estimated to affect 200 million women worldwide – approximately one-tenth of women aged 60, one-fifth of women aged 70, two-fifths of women aged 80 and two-thirds of women aged 90.
•    Osteoporosis affects an estimated 75 million people in Europe, USA and Japan.

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“Men don’t suffer from osteoporosis as often as women, but they are indeed vulnerable. The International Osteoporosis Foundation says that the lifetime risk of experiencing an osteoporotic fracture in men over the age of 50 is 30%, similar to the lifetime risk of developing prostate cancer.” That quote is from my post Are men vulnerable to osteoporosis as well as women?

Here are some steps you can take to prevent osteoporisis:

1. Calcium and Vitamin D are key. These minerals build strong, dense bones.

2. Exercise regularly. You need to do weight-bearing and muscle-strengthening exercise. Walking, dancing and running all help to build strong bones.

3. Eat fruits and veggies that have potassium and magnesium to help neutralize the acids that draw minerals out of the bones.

4. Quit smoking and reduce alcohol consumption.

To read further on this disease, check out the following posts:

What are Some foods to protect against Osteoporosis?

An Early Sign of Osteoporosis?

How to Beat Osteoporosis – Harvard

Is walking as effective as running?

Tony

 

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Study Suggests Association between Vitamin D Levels and Cognitive Function

“With just the baseline observational data, you can’t conclude that low vitamin D causes cognitive decline. When we looked four years down the road, low vitamin D was associated with worse cognitive performance on one of the two cognitive tests used,” Wilson said. “It is interesting that there is this association and ultimately the next question is whether or not supplementing vitamin D would improve cognitive function over time.”

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Vitamin D deficiency and cognitive impairment are common in older adults, but there isn’t a lot of conclusive research into whether there’s a relationship between the two.

A new study from Wake Forest Baptist Medical Center published online ahead of print this month in the journal of the American Geriatrics Society enhances the existing literature on the subject.

“This study provides increasing evidence that suggests there is an association between low vitamin D levels and cognitive decline over time,” said lead author Valerie Wilson, M.D., assistant professor of geriatrics at Wake Forest Baptist. “Although this study cannot establish a direct cause and effect relationship, it would have a huge public health implication if vitamin D supplementation could be shown to improve cognitive performance over time because deficiency is so common in the population.”

Wilson and colleagues were interested in the association between vitamin D levels and cognitive function over time…

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