Health
Colorectal cancer risk reduced by this common vitamin, study suggests
Vitamin D is widely known for boosting bone health, muscle strength and immune function, but it also has a range of other benefits — including cancer prevention.
A new study published in the journal Nutrients suggests that the common vitamin is effective in preventing and treating colorectal cancer.
Hungarian researchers conducted a meta-analysis of 50 previous studies that included more than 1.3 million participants, focusing on vitamin D’s potential effects on cancer risk, immunity and inflammation.
COMMON VITAMIN SHOWN TO REDUCE AUTOIMMUNE DISEASE
“The most important finding is that vitamin D plays a critical role in the prevention and treatment of colorectal cancer,” study author János Tamás Varga, PhD, associate professor at Semmelweis University in Budapest, told Fox News Digital.
Vitamin D is widely known for boosting bone health, muscle strength and immune function, but it also has a range of other benefits — including cancer prevention. (iStock)
“Our research clearly supports the strong correlation between 25-hydroxyvitamin D (the primary form of vitamin D) levels and cancer outcomes.”
Cancer patients with low vitamin D levels showed poorer prognoses.
Vitamin D has been shown to reduce inflammation, promote the death of cancer cells, inhibit tumor growth and enhance immune response, the researchers found.
VITAMIN D DEFICIENCY LINKED TO DEMENTIA IN CERTAIN POPULATIONS WHEN LEVELS ARE VERY LOW: STUDY
“These mechanisms significantly influence the pathophysiology of colorectal cancer,” Varga noted.
In addition to prevention, vitamin D supplementation was also shown to improve survival rates among patients with advanced-stage colorectal cancer, according to the research.
“The results suggest that the effect of vitamin D may depend on factors such as the dosage, the individual condition of the patients and the duration of treatment,” Vargas added.
The primary source of vitamin D is exposure to the sun’s ultraviolet (UV) rays. (iStock)
The American Cancer Society (ACS) has previously referenced studies suggesting that vitamin D could lower cancer risk, particularly colorectal cancer.
“However, large studies have not found that vitamin D supplements lower the risk of colorectal polyps (pre-cancerous growths) or cancer,” the ACS stated on its website.
“The optimal dosage should be tailored to the individual’s health condition and current vitamin D levels.”
One important limitation of the research is that the studies included in the analysis used different vitamin D dosages and involved patients at various stages of cancer, the authors noted.
They called for further research to accurately determine the optimal dosage and “therapeutic efficacy.”
Recommendations for Americans
“Based on our research, we recommend that individuals at high risk of colorectal cancer monitor their vitamin D levels and, if necessary, take a daily vitamin D supplement of 1000–4000 IU, especially for those with low vitamin D levels,” lead study author Dr. Monika Fekete, medical doctor at Semmelweis University, told Fox News Digital.
“The optimal dosage should be tailored to the individual’s health condition and current vitamin D levels.”
For physicians, the researchers suggest routinely measuring and supplementing vitamin D levels for both prevention and treatment purposes.
“Vitamin D plays a crucial role in the treatment and prevention of colorectal cancer, but further research is needed to determine the optimal dosage and the specific role of genetic factors,” Fekete added.
One important limitation of the research is that the studies included in the analysis used different vitamin D dosages and involved patients at various stages of cancer, the authors noted. (iStock)
“The molecular mechanisms of vitamin D — such as the regulation of oncogenes (mutated genes that can lead to cancer) and inhibition of tumor progression — require further scientific investigation.”
As the effect of vitamin D is closely linked to the patient’s condition, the doctor said, treatment recommendations should be personalized.
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The primary source of vitamin D is exposure to the sun’s ultraviolet (UV) rays.
It can also be obtained from dietary sources, according to the ACS, including fatty fish and some mushrooms.
Some foods, including milk and some orange juices and cereals, are fortified with vitamin D. (iStock)
There are also some vitamin D-fortified foods, including milk, some orange juices and cereals, the above source stated.
People can also take vitamin D supplements to boost their levels.
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“Most Americans do not get enough vitamin D in their diets, and many have low vitamin D levels in their blood,” the ACS said on its website.
“While the role of vitamin D in lowering cancer risk is still an active area of research and debate, avoiding low vitamin D levels is recommended.”
Health
Experts Call It 2026’s Best Diet— ‘The Results Are Often Stunning’
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Health
Deadly ‘superbug’ is spreading across US as drug resistance grows, researchers warn
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A deadly, drug-resistant fungus already spreading rapidly through U.S. hospitals is becoming even more threatening worldwide, though there may be hope for new treatments, according to a new scientific review.
Candida auris (C. auris), often described as a “superbug fungus,” is spreading globally and increasingly resisting human immune systems, Hackensack Meridian Center for Discovery and Innovation (CDI) researchers said in a review published in early December.
The findings reinforce prior CDC warnings that have labeled C. auris an “urgent antimicrobial threat” — the first fungal pathogen to receive that designation — as U.S. cases have surged, particularly in hospitals and long-term care centers.
DANGEROUS SPIKE IN SUPERBUG INFECTIONS SURGES ACROSS US AS EXPERTS SHARE CAUTIONS
Approximately 7,000 cases were identified across dozens of U.S. states in 2025, according to the CDC, and it has reportedly been identified in at least 60 countries.
Candida auris is a drug-resistant fungus spreading in hospitals worldwide. (Nicolas Armer/Picture Alliance via Getty Images)
The review, published in Microbiology and Molecular Biology Reviews, helps explain why the pathogen is so difficult to contain and warns that outdated diagnostics and limited treatments lag behind. It was conducted by Dr. Neeraj Chauhan of the Hackensack Meridian CDI in New Jersey, Dr. Anuradha Chowdhary of the University of Delhi’s Medical Mycology Unit and Dr. Michail Lionakis, chief of the clinical mycology program at the National Institutes of Health.
Their findings stress the need to develop “novel antifungal agents with broad-spectrum activity against human fungal pathogens, to improve diagnostic tests and to develop immune- and vaccine-based adjunct modalities for the treatment of high-risk patients,” the researchers said in a statement.
GROWING ANTIBIOTIC CRISIS COULD TURN BACTERIAL INFECTIONS DEADLY, EXPERTS WARN
“In addition, future efforts should focus on raising awareness about fungal disease through developing better surveillance mechanisms, especially in resource-poor countries,” they added. “All these developments should help improve the outcomes and prognosis of patients afflicted by opportunistic fungal infections.”
Candida auris can survive on skin and hospital surfaces, allowing it to spread easily. (iStock)
First identified in 2009 from a patient’s ear sample in Japan, C. auris has since spread to dozens of countries, including the U.S., where outbreaks have forced some hospital intensive care units to shut down, according to the researchers.
The fungus poses the greatest risk to people who are already critically ill, particularly those on ventilators or with weakened immune systems. Once infected, about half of patients may die, according to some estimates.
FLU BY STATE: WHERE THIS SEASON’S HIGHLY CONTAGIOUS VARIANT IS SPREADING THE MOST
Unlike many other fungi, C. auris can survive on human skin and cling to hospital surfaces and medical equipment, allowing it to spread easily in healthcare settings.
“It is resistant to multiple antifungal drugs, and it tends to spread in hospital settings, including on equipment being used on immunocompromised and semi-immunocompromised patients, such as ventilators and catheters,” Dr. Marc Siegel, Fox News senior medical analyst and clinical professor of medicine at NYU Langone, previously told Fox News Digital.
Scientists say the unique cell wall structure of C. auris makes it harder to kill. (iStock)
It is also frequently misdiagnosed, delaying treatment and infection control measures.
“Unfortunately, symptoms such as fever, chills and aches may be ubiquitous, and it can be mistaken for other infections,” Siegel said.
In September, he said intense research was ongoing to develop new treatments.
Only four major classes of antifungal drugs are currently available, and C. auris has already shown resistance to many of them. While three new antifungal drugs have been approved or are in late-stage trials, researchers warn that drug development has struggled to keep pace with the fungus’s evolution.
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Despite the sobering findings, there is still room for cautious optimism.
The fungus can cling to skin and hospital surfaces, aiding its spread. (iStock)
In separate research published in December, scientists at the University of Exeter in England discovered a potential weakness in C. auris while studying the fungus in a living-host model.
The team found that, during infection, the fungus activates specific genes to scavenge iron, a nutrient it needs to survive, according to their paper, published in the Nature portfolio journal Communications Biology in December.
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Because iron is essential for the pathogen, researchers believe drugs that block this process could eventually stop infections or even allow existing medications to be repurposed.
“We think our research may have revealed an Achilles’ heel in this lethal pathogen during active infection,” Dr. Hugh Gifford, a clinical lecturer at the University of Exeter and co-author of the study, said in a statement.
New research is underway to develop better treatments and diagnostics for C. auris. (iStock)
As researchers race to better understand the fungus, officials warn that strict infection control, rapid detection and continued investment in new treatments remain critical.
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Health experts emphasize that C. auris is not a threat to healthy people.
Fox News Digital has reached out to the CDI researchers and additional experts for comment.
Fox News Digital’s Angelica Stabile contributed reporting.
Health
Record-breaking flu numbers reported in New York state, sparking warnings from officials
New flu strain emerging as a severe health threat
Fox News senior medical analyst Dr. Marc Siegel joins ‘America’s Newsroom’ to warn of a new strain of the flu that is spiking hospitalizations across the country and newfound risks of medical marijuana’s link to psychosis.
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The New York State Department of Health reported a record surge in influenza activity, with 71,123 positive flu cases recorded statewide during the week ending December 20.
Health officials said the figure represents the highest number of flu cases ever reported in a single week since influenza became a reportable disease in New York in 2004.
State health data show the weekly total reflects a 38% increase from the previous reporting period, signaling a rapidly intensifying flu season.
There have been 189,312 reported positive flu cases so far this season, while influenza-related hospitalizations rose 63% in the most recent week.
FLU BY STATE: WHERE THIS SEASON’S HIGHLY CONTAGIOUS VARIANT IS SPREADING THE MOST
New York reported the highest weekly total of cases ever recorded since influenza became reportable in 2004. (iStock)
“We are seeing the highest number of flu cases ever recorded in a single week in New York state,” Health Commissioner Dr. James McDonald said in a press release.
There have been 189,312 reported flu cases so far this season, with influenza-related hospitalizations increasing 63% in the most recent week. (iStock)
Earlier this month, the department declared influenza prevalent statewide, a designation that requires unvaccinated health care workers to wear masks in patient care settings.
SURGE IN WHOOPING COUGH CASES IN SOUTHERN STATE PROMPTS HEALTH ALERTS
Health officials continue to emphasize that vaccination remains the most effective way to prevent severe illness and hospitalization from influenza.
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New Yorkers who have not yet received a seasonal flu shot are still encouraged to do so, with experts saying vaccination can offer protection even later in the season.
Health officials continue to urge New Yorkers to take preventive steps, including vaccination and staying home when sick, to limit further spread. (iStock)
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To help limit further spread, the department advises individuals experiencing flu-like symptoms — including fever, cough, sore throat, or body aches — to stay home. State health officials also recommend frequent handwashing, using hand sanitizer, and avoiding close contact with sick individuals.
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For those who become ill, officials say antiviral medications are available and are most effective when started within 48 hours of symptom onset.
Health officials also added that people at higher risk for complications should contact a health care provider promptly for evaluation and possible treatment.
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The department noted that flu activity typically peaks in January, meaning case counts could continue to climb in the weeks ahead.
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