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New Study: Mushrooms and Vitamin D

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We know that vitamin D is considered a nutrient of concern by the Dietary Guidelines for Americans, which means that most people don’t get enough of it. But according to the latest study from the Journal of Dermato-Endocrinology, the situation is more dire than that. In fact, the authors of the study Photobiology of vitamin D in mushrooms and its bioavailability in humans declare that “Vitamin D deficiency is a pandemic.”

Do you know your mushrooms?Since vitamin D deficiency has raised the risk of a variety of chronic diseases and skeletal diseases, getting enough vitamin D should be high on your clients’ to-do lists. Getting enough vitamin D will reduce the risk of disease and boost health, which can make selling this goal to your clients much easier. In fact, Keegan et.al. assert “obtaining vitamin D from sensible sun exposure, foods that naturally contain vitamin D, and from supplementation with vitamin D is imperative to maintain a healthy lifestyle.”

So, it’s time to look at the study and determine how mushrooms could play a role in good health.

But, before we begin, we want to draw your attention to the disclaimer we found at the bottom of the article…

“This work was supported by The Mushroom Council and from the National Institutes of Health Clinical Translational Science Institute Grant UL1-TR000157. The funders had no role in study design, data collection and analysis, decision to publish or preparation of the manuscript; ClinicalTrials.gov Identifier: NCT01815437.”

Anyway, now you know who supported this study and to what degree. Let’s move on to the science.

Gotta love mushrooms!According to the study, “Mushrooms exposed to sunlight or UV radiation are an excellent source of dietary vitamin D2 because they contain high concentrations of the vitamin D precursor, provitamin D2.” Furthermore, “ingestion of 2000 IUs of vitamin D2 in mushrooms is as effective as ingesting 2000 IUs of vitamin D2 or vitamin D3 in a supplement in raising and maintaining blood levels of 25-hydroxyvitamin D which is a marker for a person’s vitamin D status.”

In other words, mushrooms are as effective as vitamin D supplements when it comes to raising vitamin D to reasonable levels in the body.

But how do mushrooms become vitamin D powerhouses?

The researchers explain, “When exposed to UV radiation, mushrooms become an abundant source of vitamin D2.” That’s how they can be used as vitamin D boosters to help people reduce their risk of disease.

The study concludes, “Therefore ingesting mushrooms containing vitamin D2 can be an effective strategy to enhance the vitamin D status of the consumer. The observation that some mushrooms when exposed to UVB radiation also produce vitamin D3 and vitamin D4 can also provide the consumer with at least two additional vitamin Ds.”

So, the bottom line is that most people don’t get enough vitamin D, but consuming mushrooms exposed to UV radiation could help people improve their vitamin D profiles.

More mushrooms!Want to help your clients eat more mushrooms? Here are the top 5 mushroom recipes from Food and Health Communications!

And, because I love ya, here’s a free handout that features the Chicken with Mushrooms recipe. Share it with your clients and help them get enough vitamin D!

Chicken with Mushrooms

For More Information:

For More Nutrition Education Resources:

Check out the Nutrition Education Store — here are a few recent educator favorites…

Basic Nutrition Handout Set

Exercise Poster

Nutrition Basics PowerPoint

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Fruit Juice: As Bad as Sugary Drinks?

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The lowdown on juiceYour clients have probably already been warned about the health impact of sugary sodas and energy drinks. But have they considered fruit juice?

Fruit juice certainly seems healthful, especially when you get a brand that has no added sugars and lots of health claims on the label. But is it actually good for you?

Research published in The Lancet indicates that fruit juice may be as bad as sugary drinks in terms of calorie content, sugar content, and even, to a lesser extent, nutrient profile. Naveed Sattar, professor of metabolic medicine at the University of Glasgow in Scotland and one of the lead authors in the study, asserts, “Fruit juice has a similar energy density and sugar content to other sugary drinks, for example: 250 ml of apple juice typically contains 110 kcal and 26 g of sugar; and 250 ml of cola typically contains 105 kcal and 26.5 g of sugar.”

Of course, fruit does still contain sugar, but generally a piece of fruit has less sugar than a glass of juice. Whole fruit also contains fiber, which is mostly lost in the juicing process. According to Sattar, “One glass of fruit juice contains substantially more sugar than one piece of fruit; in addition, much of the goodness in fruit – [fiber], for example – is not found in fruit juice, or is there in far smaller amounts.”

Choose whole fruit instead!The Grape Juice Trial, referenced both by this study as well as in Medical News Today, provides a good illustration of this point. In the trial, participants drank a little over 2 cups of grape juice per day for 3 months. At the end of the trial, overweight participants had larger waists and higher levels of insulin resistance.

The trouble is that most people don’t realize that fruit juice isn’t the health powerhouse that it’s marketed to be. The article in The Lancet laments, “Thus, contrary to the general perception of the public, and of many [healthcare] professionals, that drinking fruit juice is a positive health [behavior], their consumption might not be substantially different in health terms from consumption of [sugar-sweetened beverages].”

After coming to that conclusion, the study authors assert, “We [hypothesized] that public perception of the healthiness of fruit juices might be based on poor awareness of their sugar content.” In order to test this hypothesis, they surveyed over 2,000 people about their knowledge of a variety of beverages.

What did they find?

The people surveyed often significantly underestimated the sugar content of fruit juice and smoothies while slightly overestimating the sugar content of sugar-sweetened beverages.

So what can we conclude? Well, it seems that people don’t really know how sugar-dense, calorie-dense, and nutrient-light many fruit juices are. Fruit juices lack many of the nutrients and much of the fiber that you can get in whole fruit. Plus, whole fruit has less sugar than a glass of juice.

We’ll be keeping our eyes peeled for more research on the subject!

References:

Of course, there are tons of great educational resources about nutrition and drinks in the Nutrition Education Store. Here are some options that might be useful…

Are You Drinking Candy? Sugar Awareness Poster

Don’t Drink Your Calories PowerPoint and Handout Set

Healthier Choices Bulletin Board Kit

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