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Cancer risk linked to common blood-related condition, research reveals
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Anemia, a common blood disorder, may be a major risk factor for developing cancer.
That’s according to new research from Sweden, which sought to discover whether newly developed anemia is an early warning sign of cancer or death from any cause.
The study, published in BMJ Journals, looked at registry data from more than 380,000 Swedish adults – half were people with new-onset anemia and the other half were the same age and gender, but did not have anemia.
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All participants were over 18 years old and cancer-free at the start of the study.
The results showed that people with incident anemia – new cases occurring over a specific period – had a significantly higher chance of being diagnosed with cancer, especially in the first three months, according to a press release. This included 6.2% of men and 2.8% of women.
Anemia, a common blood disorder, may be a major risk factor for developing cancer. (iStock)
Individuals with anemia also had a much higher chance of death during the 18-month follow-up.
Specific types of anemia were individually linked to disease progression and mortality, the researchers discovered.
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Microcytic anemia – where the red blood cells are smaller than normal – was more frequently linked to cancer, especially types of disease that impact the digestive system and the blood.
Macrocytic anemia, a type of anemia where the red blood cells are larger than normal, was more strongly linked to overall mortality than cancer.
The researchers concluded in the study that new-onset anemia is a “strong and sustained risk marker” for both incident cancer and all-cause mortality. (iStock)
The researchers concluded in the study that new-onset anemia is a “strong and sustained risk marker” for both incident cancer and all-cause mortality.
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Lead study author Elinor Nemlander, researcher at the Department of Neurobiology, Care Sciences and Society at the Karolinska Institutet, commented on the findings in a press release from the Swedish medical university.
“We found that both the risk of cancer and the risk of death are highest during the first months after anemia is detected, but that the increased risk persists later during follow-up as well,” she said. “Our findings suggest that anemia may be a sign of underlying disease rather than a condition in its own right.”
Specific types of anemia were individually linked to disease progression and mortality, the researchers discovered. (iStock)
Speaking with Fox News Digital, Nemlander noted that measures like red blood cell size are already “routinely available” in primary care, and that the study highlights how this existing data can be used to identify early risk.
“At the same time, the elevated risks persist over time, underscoring the need for structured follow-up and clear plans for continued evaluation, even when cancer is not initially identified,” she said.
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As the study was observational, it shows an association, but does not prove that anemia causes cancer or death.
The research also did not measure for all causes of anemia, including alcohol use, malnutrition, chronic liver disease, inflammatory conditions and gynecological blood loss.
“Some of the results may also be influenced by who gets tested, underlying illnesses and differences in how anemia is evaluated in different healthcare settings,” Nemlander added.
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Eliminating sugar from your diet may seem like the key to healthy eating, but research suggests it could have unintended effects on digestive health.
A study presented at ENDO 2026, the Endocrine Society’s annual meeting, suggests that a total lack of sucrose, or table sugar, may harm gut health and disrupt the body’s natural metabolism.
To explore how the total absence of dietary sugar impacts the body, researchers at the Dasman Diabetes Institute in Kuwait City conducted a 16-week study on two groups of mice. Both groups were placed on a low-fat diet, but with one critical difference.
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One group consumed a low-fat diet that included a standard amount of sucrose, while the other group ate a low-fat diet that was completely sugar-free, according to the study’s press release.
Throughout the trial, the scientists monitored a wide variety of physiological factors, including the animals’ weight, glucose tolerance, insulin sensitivity, hormone levels, internal inflammation and the specific composition of their gut bacteria.
A total lack of dietary sugar can cause imbalances in the gut bacteria and lead to signs of fatty liver disease, even without any weight gain, researchers said. (iStock)
The study outcome suggested that completely removing sugar caused several unexpected health problems.
“Completely removing sucrose from a low-fat diet may unexpectedly disrupt gut health and promote inflammation and metabolic dysfunction,” Rasheed Ahmad, principal scientist and head of the Immunology & Microbiology Department at the Dasman Diabetes Institute, said in the release.
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Even though the mice on the sugar-free diet did not gain any extra weight compared to the control group, their internal health indicators deteriorated.
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The animals that lacked sucrose developed an imbalance in their gut microbes and increased inflammation within the intestines and liver.
They also showed signs of poor glucose regulation, insulin resistance and cellular changes associated with fatty liver disease, according to the research.
Future dietary guidelines may shift away from strict, absolute sugar bans and instead focus on overall gut health through balanced nutrition. (iStock)
“The findings suggest that complete removal of sucrose from a low-fat diet may negatively affect gut microbiota and metabolic health,” Ahmad concluded.
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While the risks of high-sugar diets are well-established, the researchers noted that little attention has been given to the effects of completely eliminating sugar from low-fat meals.
Scientists say these new findings highlight that dietary carbohydrates play a valuable role in supporting balance between the immune system and the gut microbiome.
Completely cutting sucrose from a low-fat diet can unexpectedly trigger gut inflammation and disrupt the metabolism, experts say. (iStock)
Because this research was conducted on mice over a relatively short 16-week period, further clinical trials are necessary to determine whether a completely sugar-free diet causes the same gut and liver inflammation in humans.
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Additionally, the study focused specifically on removing sucrose from low-fat meals, meaning the results might not apply to people eliminating sugar while following higher-fat or ketogenic eating plans, the researchers noted.
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The team believes that future dietary guidelines may shift away from strict, absolute sugar restrictions and instead place a greater emphasis on maintaining a diverse, healthy population of gut bacteria through balanced nutrition.
“In the long term, these findings could help improve strategies for preventing and managing metabolic disorders, fatty liver disease and chronic inflammatory conditions,” Ahmad said.
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A cure for cancer could be on the horizon in the next decade, according to experts.
During the WSJ Leadership Institute CEO Summit in London last week, Johnson & Johnson Chairman and CEO Joaquin Duato reflected on the pharmaceutical company’s projections on the future of cancer treatment.
In the next 10 years, the goal is to “try to eliminate cancer,” Duato shared.
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“That’s a high goal, and we are already making significant progress in certain cancers,” he said.
Duato used multiple myeloma as an example, noting that the life expectancy is currently 10 years, when it was previously “only single years.”
Joaquin Duato, chairman and CEO of Johnson and Johnson, speaks at the Punchbowl News Conference at Union Station on March 10, 2026, in Washington, DC. (Heather Diehl/Getty Images)
“We have treatments now that utilize your own immune system to attack the cancer,” he said at the summit. “For patients who were already going into hospice, so they didn’t have any other alternative, they are [at] more than five years, with a single administration, in remission. That [is] spectacular.”
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“When patients see that, they cannot believe that because they have been coming to the hospital every week [for] a decade, having multiple therapies.”
The goal is to “try to eliminate cancer” in the next 10 years, the pharmaceutical executive said. (iStock)
According to Duato, Johnson & Johnson is working to understand the biology of cancer growth and to formulate new technologies to address it.
“It’s realistic to believe that we are going to cure certain cancers, and some others we’re going to turn into chronic diseases,” he predicted.
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“Cancer is an important thing – I cannot think about anybody who has not been touched by cancer,” he went on. “But there are many other opportunities for us to actually advance science, to address very important social problems.”
Duato called out dementia as another “important problem” in need of a solution.
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He predicted that life expectancy, which has risen steadily over the past century, will continue to increase as longevity technologies and solutions advance, improving quality of life along the way.
Duato commented that J&J has been optimistic about the role artificial intelligence will play in the future of healthcare, calling it a “force multiplier.”
Biomarkers and AI can help with the earlier diagnosis of cancer, as well as a more advanced and personalized approach to surgery, a doctor noted. (iStock)
Fox News senior medical analyst Dr. Marc Siegel agreed with Duato’s outlook on the future of cancer care, noting that certain cancers will turn into chronic diseases while others will find outright cures.
“Advances [will be] based on the use of AI to help guide targeted treatments with expanding knowledge of cancer mutations and how to target them,” he predicted, speaking to Fox News Digital.
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Siegel added that biomarkers and AI can help with earlier diagnoses, as well as a more advanced and personalized approach to surgery.
J&J recently acquired Firefly Bio, a biotech firm that produces drugs that enter cancer cells to “target certain proteins that contain difficult to treat gene mutations,” the doctor added.
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