Health
Do you need a magnesium supplement? Experts share symptoms of deficiency
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Magnesium is said to be a natural remedy for a variety of ailments — but is it really necessary to supplement, and if so, how much do you need?
Fox News Digital spoke to multiple health experts about the multipurpose mineral, which plays a role in over 300 of the body’s enzyme systems and helps with energy production, muscle and nerve function, and blood pressure regulation.
Magnesium may help lower the risk of certain diseases and could help to improve sleep, reduce stress and anxiety, and prevent nighttime muscle cramps, sources said.
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The nutrient “supports a stable heartbeat and prevents arrhythmias, works with calcium and vitamin D to keep bones strong, and aids insulin sensitivity and glucose metabolism,” Dr. Heather Viola, a primary care physician with Mount Sinai Health System in New York City, told Fox News Digital.
Magnesium can also help with constipation relief, migraine prevention and PMS symptoms, according to Eleana Quattrocchi, a pharmacist and associate professor of pharmacy practice at Long Island University in Brooklyn, New York.
Fox News Digital spoke to multiple health experts about the mineral magnesium, which plays a role in over 300 of the body’s enzyme systems and helps with energy production, muscle and nerve function, and blood pressure regulation. (iStock)
Signs of magnesium deficiency
Many Americans do not get enough magnesium in their diet, according to the National Institutes of Health (NIH) Office of Dietary Supplements.
“Habitually low intakes of magnesium induce changes in biochemical pathways that can increase the risk of illness over time,” the NIH website states.
Studies have shown that up to 15% of people in the U.S. could experience magnesium deficiency.
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Lack of magnesium can raise the risk of hypertension, cardiovascular disease, type 2 diabetes, migraine headaches and osteoporosis.
Potential symptoms include insomnia, muscle cramps, constipation, nausea and vomiting, fatigue, weakness, numbness, tingling, personality changes and heart arrhythmias, experts say.
Lack of magnesium can raise the risk of hypertension, cardiovascular disease, type 2 diabetes, migraine headaches and osteoporosis, according to studies. (iStock)
In severe cases, hypocalcemia (low calcium levels) or hypokalemia (low potassium levels) might occur, according to the NIH Office of Dietary Supplements.
Blood tests can help detect low levels, but Viola cautioned that those tests “aren’t perfect” because most magnesium is inside cells, not in serum.
Studies have shown that up to 15% of people in the U.S. could experience magnesium deficiency.
Certain medical conditions, alcoholism, some medications and a diet lacking in the mineral may contribute to magnesium deficiency.
“People with gastrointestinal disease, such as Celiac disease or Crohn’s disease, or those who have had a gastric bypass may develop magnesium deficiency,” Sue-Ellen Anderson-Haynes, a spokesperson for the Academy of Nutrition and Dietetics and a registered dietitian who owns 360Girls&Women in Massachusetts, told Fox News Digital.
How much magnesium do you need?
The recommended daily dietary intake of magnesium is 310 to 320 mg per day for adult women and 400 to 420 mg per day for adult men.
“The majority of magnesium is found in plants liked nuts, seeds and beans,” Anderson-Haynes told Fox News Digital. “For reference, 1 ounce (2 tablespoons) of pumpkin seeds provides 156 mg of magnesium and 1 ounce of chia seeds is 111 mg (26% DV) of magnesium.”
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Some specific sources of magnesium include peanut butter, bananas, avocado, nuts (almonds), black beans, leafy greens (like spinach and kale), whole grains, yogurt and dark chocolate.
While dietary sources are the best way to meet daily magnesium requirements, supplements are recommended in certain cases, health experts told Fox News Digital.
Magnesium may help lower the risk of certain diseases and could help to improve sleep, reduce stress and anxiety, and prevent nighttime muscle cramps, sources said. (iStock)
“A supplement should be taken when a known deficiency or a health condition is present with excessive magnesium losses, like alcoholism,” Samantha Dieras, a registered dietitian and director of ambulatory nutrition services at the Mount Sinai Hospital in New York City, told Fox News Digital.
Physicians may recommend supplements for magnesium-deficient patients or for individuals who are taking certain medications, such as diuretics or Proton pump inhibitors that can deplete magnesium, Viola noted.
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It is possible to ingest too much supplementation.
“You can get too much magnesium, but mainly from supplements, not food,” Viola said. “It’s very safe from food, as kidneys eliminate the excess.”
Over-supplementing can cause diarrhea, nausea and lethargy, according to the expert.
Choosing a magnesium supplement
Magnesium supplements come in different forms for various purposes, which are absorbed in different ways.
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One of the most popular forms is magnesium citrate, which is typically taken orally to raise levels in the body and alleviate constipation, according to Healthline.
Magnesium chloride is another good choice for correcting deficiencies, and also alleviates heartburn and constipation.
Individuals should speak with their physician before starting magnesium supplements, as it may interfere with some medications and medical conditions. (iStock)
For those who can’t tolerate other forms, magnesium lactate and magnesium malate may be gentler on the digestive system, Healthline noted.
Magnesium taurate is known to have potential benefits for regulating high blood sugar and high blood pressure, while magnesium L-threonate could potentially help support brain health.
“You can get too much magnesium, but mainly from supplements, not food.”
“The magnesium salts used for a calming effect are glycinate and taurate,” Quattrocchi told Fox News Digital.
Magnesium glycinate has also been shown to improve sleep, reduce mental health issues and treat inflammatory conditions, according to Healthline.
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Individuals should speak with their physician before starting magnesium supplements, as it may interfere with some medications and medical conditions.
Health
One walking habit could signal a healthier brain after 80, scientists say
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Older adults identified as “super movers” are about half as likely to develop cognitive impairment than their peers.
That’s according to a recent study led by Stony Brook Medicine in New York, which evaluated the cognitive function of 4,000 adults 80 and over who participated in multiple aging and longevity studies over several years.
Among this group, 6% to 10% were classified as super movers, which means they walk at a much faster pace than others of the same age and gender — at speeds comparable to people three decades younger.
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The super movers were found to have about half the risk of cognitive decline compared to seniors with typical gait speed.
The findings were published in the journal Neurology on June 16.
Older adults identified as “super movers” are about half as likely to develop cognitive impairment than their peers. (iStock)
“The study reinforces that mobility and brain health are closely connected,” lead study author Dr. Joe Verghese, MD, neurologist at Stony Brook Medicine, told Fox News Digital. “This suggests that preserving mobility may be an important marker of healthy brain aging and resilience.”
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The most intriguing finding, according to Verghese, was that super movers maintained cognitive function despite having similar dementia-related brain changes as their peers.
In postmortem brain analysis, there was no difference in dementia-related pathologies between the super movers and the slower walkers, the study stated.
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“This suggests they may possess resilience mechanisms that help preserve brain function even in the presence of age-related changes,” he said. “Understanding these resilience factors could lead to new strategies for promoting healthy brain aging.”
As the study was observational, there were some limitations, and it does not prove that walking faster prevents dementia, the researchers noted.
Super movers were found to have about half the risk of cognitive decline compared to seniors with typical gait speed. (iStock)
“Other factors, such as cardiovascular health, physical fitness or genetics, may also contribute to both faster walking and better cognitive outcomes,” Verghese said.
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This study adds to growing evidence that what’s good for the heart and muscles also benefits the brain, he noted, adding that “staying physically active remains one of the most effective, evidence-based ways to support healthy aging.”
“Walking speed is best viewed as a marker of overall health, not a treatment.”
“The broader message is that physical activity is important at any age,” Verghese said. “Walking is an easy step-up point because you don’t need any special equipment. You can do it inside or outdoors, and you can do it on a regular basis. You can walk with a dog, you can walk with a friend.”
Any activity is beneficial if it’s done regularly and with the right intensity, he added.
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Rather than just trying to walk faster, the neurologist recommends that seniors focus on maintaining mobility through regular physical activity, strength training, balance exercises and good cardiovascular health.
“Walking speed is best viewed as a marker of overall health, not a treatment,” Verghese noted.
Major public health guidelines from the CDC and U.S. Physical Activity Guidelines recommend at least 150 minutes of moderate-intensity aerobic activity each week, such as brisk walking.
Major public health guidelines from the CDC and U.S. Physical Activity Guidelines recommend at least 150 minutes of moderate-intensity aerobic activity each week, such as brisk walking. (iStock)
This can be achieved by walking 30 minutes a day, five days a week, or about 20 to 25 minutes most days. Another option is to engage in shorter sessions that add up over the day.
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“You have to do it within your health limitations and medical conditions,” Verghese advised. “So if there are any medical concerns, I would get your physician to clear you before starting exercise.” The good thing about walking, he added, is that you can start at a slow pace and then gradually build up to a brisker pace.
“And then adding on strength and balance training, whatever age you are, I think is also important.”
Health
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Health
Dr Oz warns Medicare scammers are stealing billions — and your personal information could be next
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Washington, D.C. – Medicare fraud is a multibillion-dollar problem that government officials say threatens both taxpayer dollars and Americans’ personal identities.
In a July 6 interview with Fox News Digital at the Great American State Fair in Washington, D.C., Dr. Mehmet Oz warned that every dollar stolen through Medicare fraud is a dollar taxpayers lose – a problem that has worsened since the COVID pandemic.
“If I had to just pick one thing to focus on to make healthcare more affordable in America, I’d go to health fraud and all the waste and abuse that accompanies it,” said Oz, who is the administrator of the Centers for Medicare & Medicaid Services. “And just to put this in perspective, we think it’s about $100 billion a year.”
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Medicare fraud can include billing for services that were never provided, overcharging for medical equipment, using stolen patient or doctor information, or performing unnecessary procedures, according to the U.S. Government Accountability Office.
CMS administrator Dr. Mehmet Oz is pictured on stage at the Great American State Fair in Washington, D.C., on July 6, 2026. (Angelica Stabile/Fox News Digital)
As the Trump administration ramped up efforts to combat fraud, CMS reported $41.9 billion in Medicare program integrity savings in 2025, up 59% from $26.3 billion in 2024.
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Medicare fraud not only harms the federal budget and steals from taxpayers, but exposes seniors to identity theft, unnecessary care, higher premiums and reduced access, Oz cautioned.
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Removing corruption from the healthcare system will have the greatest impact among seniors, since “so much of the fraud is perpetrated against them,” the administrator said.
“I’m talking about people tricking seniors to give up their Medicare beneficiary numbers, which is like a credit card basically,” he said. “These scammers can take those numbers and use them for all kinds of illegitimate purposes.”
“If I had to just pick one thing to focus on to make healthcare more affordable in America, I’d go to health fraud and all the waste and abuse that accompanies it,” said Oz. (Fox News Digital)
“People are stealing from you by pretending to send you drugs you don’t want, wheelchairs you don’t need, [and] services you never asked for or don’t benefit from,” Oz added.
To prevent this, he shared his top advice for seniors: Do not give your Medicare beneficiary number to anybody, do not answer questions on a phone call from an unknown person and do not give away personal information.
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“These scammers are calling seniors, tricking them, and once they have key information, they can steal it,” he said. “And I won’t know it and you won’t know it.”
“We want to protect people who need these programs the most,” Oz went on. “You do that by making sure scoundrels don’t corrupt the systems and steal money out of the till that is designed to help folks in dire straits when they’re vulnerable and in need of services.”
Seniors should never share their Medicare information with unknown people, the administrator advised. (iStock)
Removing fraud could “double the life expectancy of the trust fund that makes all this possible,” Oz predicted.
“If you’re worried about Medicare being there when you’re ready to retire in a couple decades, depending on how old you are, and you’re concerned that it might not last because of all the fraud that’s hitting it … you’ve got a good [reason to] worry,” he said.
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“If we take the fraud out, we could double the life expectancy, which means you, your kids, your kids’ kids … they could all benefit from this beautiful safety net program.”
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