health and wellness
Vitamin D builds your bones and keeps your gut sealed, among many other essential functions − but many children are deficient
Jacqueline Hernandez, Florida International University and Cristina Palacios, Florida International University
You’ve likely heard about vitamin D’s important role in maintaining strong bones and teeth. But it also plays several other important roles to keep your body healthy – including the function of your gut.
As part of our research on how a dietary fiber supplement affects bone mass in children and adolescents, the MetA-Bone Trial, we are also studying gut health.
For this study, we recruited 213 children and adolescents from South Florida, primarily Hispanics, though some were Black. Before having them start taking the fiber supplement, we measured their vitamin D levels to ensure they had adequate amounts. Surprisingly, we found that 68% of these children had suboptimal vitamin D levels.
Considering South Florida is an area with plenty of sunshine year-round, this was both startling and concerning. While vitamin D can be obtained from foods, most people in the U.S. get this vitamin primarily from skin exposure to sunlight. For youth approaching or experiencing puberty – a period of profound physiological changes, including rapid changes in bone mass – vitamin D deficiency could lead to several health issues.
Connection between vitamin D and health
Vitamin D is involved in so many bodily functions because there are vitamin D receptors in different organs. These receptors act like docking stations for vitamin D to bind to and trigger different effects in the skin, intestine, bone, parathyroid gland, immune system and pancreas, among others.
Vitamin D regulates calcium levels in the body, which is key for not only building and maintaining bone mass but also the basic functioning of the nervous system.
Vitamin D also stimulates cell differentiation, a process in which cells become specialized to carry out specific functions. It is also essential to insulin secretion to control blood sugar levels, blood pressure regulation, muscle repair and regeneration, immune function and nutrient absorption, among many other functions.
Vitamin D and gut health
The vitamin D receptors in your gut improve calcium absorption and strengthen your intestinal barrier.
The intestinal barrier is a layered wall that allows your gut to absorb nutrients and keep out harmful bacteria. This wall is composed of intestinal cells and proteins called tight junctions that act like bricks sealing these cells together. Tight junctions play an important role in maintaining the structure of your intestinal barrier.
Vitamin D receptors help your gut produce tight junctions to maintain your intestinal barrier. Research suggests that vitamin D deficiency reduces production of the receptors the nutrient binds to, subsequently reducing the seal of the intestinal wall. This weakening of the gut barrier may allow substances from the intestine to pass into the blood, causing inflammation. Disruption of the intestinal barrier is linked to many diseases, including liver disease, Type 1 diabetes, obesity and gastrointestinal conditions such as celiac disease, inflammatory bowel disease and colon cancer.
After discovering that so many of the participants in our MetA-Bone Trial had suboptimal vitamin D levels, we became interested in understanding how this nutrient might be affecting their gut health. For this, we also measured the strength of their intestinal barrier and associated this to their vitamin D levels in blood.
We found that children with suboptimal vitamin D levels had a higher risk of damaging their intestinal barrier compared with children with optimal vitamin D levels. This finding suggests that even in healthy children, suboptimal levels of vitamin D may compromise the gut and potentially increase the risk of developing chronic diseases at an early age.
Getting enough vitamin D
Vitamin D deficiency is highly prevalent in the U.S. and around the world. Roughly 15.4% of children and adolescents in the U.S. were vitamin D deficient in 2017. While vitamin D deficiency has slightly decreased over time in the general U.S. population, it remains high among teens, especially children with darker skin.
How can you ensure you are getting enough of this important nutrient?
Only a few foods naturally contain vitamin D. For example, vitamin D is naturally found in fatty fish – such as trout, salmon, cod and tuna – egg yolks and mushrooms. Vitamin D can also be found in many fortified foods, such as dairy products like milk and cheese, plant-based milks, breakfast cereals, some orange juice brands and infant formulas. Dietary supplements are also good sources of vitamin D.
For most people in the U.S., sun exposure is their main source of vitamin D. However, how much sun exposure you need depends on several factors, such as the melanin content of your skin. Melanin is a pigment that protects your skin from ultraviolet radiation. People with more melanin – and therefore darker skin – produce less vitamin D from sun exposure than those with less melanin and may thus require longer sun exposure to meet minimum requirements.
Since excessive ultraviolet radiation is associated with skin cancer, clinicians typically recommend you meet your vitamin D requirements through foods and beverages. For healthy children and adults, the recommended dietary allowance of vitamin D is 600 IU, with an age-based upper limit of no more than 1,000 to 4,000 IU. You can usually meet this through a healthy diet that includes a variety of whole and unprocessed foods.
Researchers continue to uncover the extensive benefits of vitamin D in the body, supporting its indispensable role in nutrition and health. For growing children and adolescents, enough vitamin D is important for healthy development.
Jacqueline Hernandez, Assistant Professor of Dietetics and Nutrition, Florida International University and Cristina Palacios, Professor and Chair of Dietetics and Nutrition, Florida International University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Health
How Young Adults Can Build a Healthier Future
Bridging national service and public health, the initiative supports a diverse group of early career professionals working to address today’s public health challenges in a range of roles
(Family Features) Shaping the future of public health into an equitable one means ensuring all people and communities have access to the health care and resources they need to live well. The nation requires a strong, diverse public health workforce to accomplish that goal.
That’s why AmeriCorps and the Centers for Disease Control and Prevention launched Public Health AmeriCorps – to support the recruitment, training and development of early career public health workers who can serve their local communities.
Bridging national service and public health, the initiative supports a diverse group of early career professionals working to address today’s public health challenges in a range of roles, including:
- Health education and training
- Community outreach and engagement
- System navigation, referrals and linkage to care
- Research, data collection, analysis and assessment
What Members are Saying
Everyone was impacted by the COVID-19 pandemic – including Dionne Johnson, who lost a loved one to the virus.
“I had a family member die from COVID-19, and it really touched me,” Johnson said. “That gave me the passion and lit the fire under me to actually pursue a career in public health.”
Now, Johnson is realizing her dreams of transforming public health in her community. In her work, she wants to teach people in Black and brown communities how they can learn to be healthy and advocate for themselves.
Another member, Jaiden Singh, is the son of immigrants. Singh launched a promising career in public health so he can give back to the community where he grew up.
“Being a part of the organization not only has really supplemented my education that I’m working toward in public health and policy, it has also given me the opportunity to do work that I am really passionate about in a community that I have known all my life and really do love,” Singh said. “I would highly recommend being a part of this really valuable and inspiring community.”
Action That Creates Impact
The diverse work of Public Health AmeriCorps benefits not only program members but also the communities they serve. As examples of the program at work, members have:
- Provided overdose rescue education, raised awareness about opioid use disorder and harm reduction strategies and distributed overdose rescue kits containing naloxone (an overdose-reversing nasal spray).
- Held back-to-school COVID-19 testing events, distributed early childhood health education and built community gardens in underserved communities.
- Participated in a community mental health crisis intervention system to assess, stabilize and link people in crisis to follow-up care and services.
- Supported elementary schools as part of a dental hygiene program that sends out staff and volunteers to provide free teeth cleanings to students.
Learn More and Apply
If you want to start your career and make a difference in public health, consider member benefits such as:
- Education awards to apply to higher education or student loan forgiveness
- Student loan deferment and forbearance
- Living allowance
- Hands-on experience
- Training from experts
Visit AmeriCorps.gov/PublicHealth for a list of opportunities to serve and contact your desired opportunity by phone or email to learn more and apply. You can also subscribe to the newsletter to learn more about the initiative.
SOURCE:
AmeriCorps
Lifestyle
Saving a Life This Summer: Ways to Step Up Safety Practices
Regardless of where you are, summer is a reminder that emergencies like cardiac arrest can happen anywhere. Take the safety of those around you into your own hands this summer with this checklist.
(Feature Impact) The busy summer season can take you almost anywhere – baseball fields, backyard cookouts, long workdays or road trips across the country. Regardless of where you are, summer is a reminder that emergencies like cardiac arrest can happen anywhere.
More than 350,000 out-of-hospital cardiac arrests occur in the United States each year, and 90% of people will not survive, according to the American Heart Association, a nonprofit organization devoted to changing the future for a world of healthier lives for all. Sudden cardiac arrest can happen anytime, anywhere. People often hesitate to step in. In fact, nearly 2 out of 3 adults believe CPR can only be performed by medical professionals. This mistaken belief can cost lives and contributes to the low survival rate.
Ordinary people have extraordinary power. You don’t need to wear scrubs or have a medical background to save a life – you just need the courage to act.
Take the safety of those around you into your own hands this summer with this checklist.
Plan Ahead
Summer is often a time for welcome disruptions, including vacations, camps, sports and parties. Before traveling or attending events, check if your destination has a cardiac emergency response plan, which establishes specific steps to reduce death from cardiac arrest in any setting, from schools and community organizations to workplaces and sports facilities.
Learn CPR
Cardiac arrest can happen anywhere: at home, at work, in schools, at a soccer game or on vacation. When it happens, the first chance for survival often rests with the people nearby.
Anyone can be the difference before professional help arrives. The power to save a life is in your hands. CPR is a human responsibility, not just a medical skill. When friends, family or even strangers step in during cardiac emergencies, survival rates can double or even triple.
Hands-Only CPR for adults consists of two easy steps:
- Call 9-1-1 or shout for someone else to call.
- Push hard and fast in the center of the chest to the beat of a familiar song that’s 100-120 beats per minute, such as “Stayin’ Alive” by the Bee Gees.
Share Resources with Your Family and Community
Once you’ve learned simple, two-step Hands-Only CPR, share resources with your community to help expand the American Heart Association’s Nation of Lifesavers. Raising awareness with family, neighbors and colleagues can help people feel confident in the face of an emergency.
Families can watch short instructional videos that demonstrate the life-saving steps for adults as well as techniques for infants and children.
Travelers can also get trained in about 5 minutes with a Hands-Only CPR Kiosk, located in many airports and public spaces across the country.
To find more information about learning CPR, visit Heart.org/Nation.
Summer Safety Tips
In addition to learning CPR and sharing valuable resources with your family and community, consider these ways to keep yourself and loved ones safe throughout the summer months.
- Stay Hydrated: High temperatures can quickly lead to dehydration and heat-related illness. Drink water regularly throughout the day, especially during outdoor activities, and pack extra water when away from home.
- Protect Your Skin: Hats, sunglasses and lightweight clothing can protect skin from sun exposure, but it’s important to use broad-spectrum sunscreen and reapply every 2 hours.
- Swim with a Buddy: Hopping in a pool, lake or ocean is a hallmark of summer but can be dangerous without precautions. Never swim alone and ensure children are always supervised by an adult near water.
- Identify the Locations of Safety Equipment: When attending camps, heading to a sporting event or enjoying the pool or beach, identify where lifeguards, AEDs and emergency exits are located. Knowing where to find help can save valuable time when every second counts.
- Practice Grill Safety: Some of your most memorable summer moments may happen during a backyard barbecue or cookout, and it’s important to keep those gatherings safe. Use grills away from homes, decks and dry grass. Never leave them unattended while cooking, and be sure kids and pets stay at a safe distance from hot surfaces.
Saving a Life Within 1 Year of Learning CPR
On a chilly Tuesday, dawn was breaking as Matthew Lynch reached his highway exit, but traffic was backed up at a particular intersection. He waited through three cycles before finally getting close enough to see the holdup: a stalled SUV.
While most cars buzzed by, Lynch moved slowly and peered into the vehicle. He saw people inside and parked his sedan, flipped on the hazard lights and ran to the stalled SUV. As he knocked on the driver’s window, there was no response. The doors were locked. Two people – a male driver and female passenger – were unresponsive.
Lynch ran back to his own car and called 9-1-1 before managing to open the driver’s side door. He discovered the driver was not breathing normally, signaling to Lynch he’d need to start CPR – which he’d learned 10 months earlier during a training session he’d helped organize for a work-sponsored men’s group.
Knowing he had to do something, Lynch started pushing hard and fast in the center of the man’s chest. Within a minute, the man gasped for breath.
Just as Lynch leaned over to see if he could help the female passenger, first responders arrived and Lynch backed away, knowing there was nothing more he could do.
“It was just a lot to take in,” said Lynch, a member of the American Heart Association’s 2026 Nation of Lifesavers Class, a small group of volunteers, dedicated to raising awareness of CPR by sharing their own personal stories of survival or rescue. “Mostly I felt an incredible sense of gratitude that I could help someone.”
A strong admirer of the Good Samaritan parable, Lynch is always on the lookout for the opportunity to help others. He learned a lot about himself in that moment and about the importance of learning CPR, along with the confidence that comes from knowing you could be a lifesaver.
“I quickly realized the certification was way less important than the actual CPR training,” he said. “Your ability to help in any capacity is better than doing nothing. If I hadn’t done that training, I probably would not have helped.”
SOURCE:
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News
How healthy is Sodastream?
The SodaStream Sparkling Water Maker is a device that forces carbon dioxide (CO2) gas (stored under pressure in a cylinder) into water, making it sparkling (fizzy)
Sodastream machines have been gaining popularity in recent years as an alternative to store-bought soft drinks. Not only are they more environmentally friendly, but they also offer several health benefits compared to traditional sodas.
Reduced Sugar Intake
One of the most significant health benefits of using a Sodastream machine is reducing sugar intake. Traditional sodas are loaded with sugar, and excessive sugar intake can lead to weight gain, obesity, and other health problems such as Type 2 diabetes. With a Sodastream machine, you can control the amount of sugar you add to your drink, allowing you to enjoy a refreshing beverage without the harmful effects of excessive sugar consumption.
No Artificial Sweeteners
Many store-bought soft drinks contain artificial sweeteners, which can have negative health effects such as headaches and digestive problems. Sodastream machines, on the other hand, allow you to use natural sweeteners such as fruit extracts, honey or agave nectar, giving you a healthier and more natural alternative.
No Preservatives
Another advantage of using a Sodastream machine is that you can avoid preservatives commonly found in store-bought soft drinks. Preservatives such as sodium benzoate and potassium sorbate have been linked to health problems such as cancer and allergies. By making your own drinks, you can avoid these harmful additives and enjoy a healthier, preservative-free beverage.
Eco-Friendly
In addition to the health benefits, using a Sodastream machine is also environmentally friendly. Traditional soft drinks are packaged in plastic bottles or cans, which contribute to environmental pollution. With a Sodastream machine, you can reuse the same bottle multiple times, reducing waste and helping to reduce your carbon footprint.
Variety
Finally, Sodastream machines offer a wide variety of flavors and options, allowing you to customize your drink to your liking. You can mix and match different flavors or create your own unique blends, giving you a healthier and more enjoyable alternative to traditional sodas.
In conclusion, Sodastream machines offer several health benefits compared to traditional store-bought soft drinks. By reducing sugar intake, avoiding artificial sweeteners and preservatives, and being eco-friendly, they offer a healthier and more sustainable alternative to traditional soft drinks. Moreover, with a wide variety of flavors and options, you can customize your drink to your liking, making it a fun and enjoyable way to stay healthy.
