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HEALTH NEWS
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Arginine Supplement May Strengthen Immune Response to Cancer and Viral Infections
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Yeast food supplement helps immune cells fight cancer more effectively
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Physical activity linked to lower stroke and death risk in adults with atrial fibrillation
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Phthalates may contribute to high blood pressure in pregnant women
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Daily Collagen Supplement Alters Bone-Related Blood Markers in Female Runners, Study Says
Arginine Supplement May Strengthen Immune Response to Cancer and Viral Infections
Rockefeller University, August 10, 2026 (Natural News)
A study published in the journal Cell reports that arginine, an amino acid found in protein-rich foods and produced by the body, may help the immune system recognize and respond to cancer and viral infections. The research found that low arginine levels were linked to reduced production of MHC-1, a protein that displays abnormal cellular signals to T cells, according to the report.
In mouse models, arginine-rich diets were associated with fewer colon tumors and milder influenza and SARS-CoV-2 infections, the researchers reported. The findings add to prior work linking declining immune function to cancer progression.
When arginine is scarce, cells struggle to produce MHC-1 proteins, which appear on the surfaces of cells throughout the body and display foreign or abnormal proteins to T cells.
Researchers repeated the dietary studies using mouse models of influenza and SARS-CoV-2, conditions previously associated with unusual levels of different amino acids. One of the most dramatic patterns to emerge was that arginine was the most depleted amino acid in all of these diseases. Not only did mice with an arginine-rich diet have milder symptoms from viral infections, giving the mice arginine after influenza infection improved their outcomes too.
Yeast food supplement helps immune cells fight cancer more effectively
Trinity College Dublin & University College Dublin, July 9 2026
Researchers from Trinity College Dublin (TCD) and University College Dublin (UCD) have shown for the first time that a food supplement made from yeast helps the body to make stronger immune cells that can fight cancer.
The research teams found that adding a yeast-based supplement to the food of obese laboratory mice changes how their immune cells grow and help to make better cancer‑fighting cells.
Mice were fed a standard or high fat diet supplemented with yeast beta-glucan for 4-12 weeks and then their immune system was challenged by different types of cancer cells (colorectal, skin and breast cancer). The study also tested whether yeast supplementation could overcome immune dysfunction caused by obesity and whether protective effects persist after weight loss.
Crucially, this dietary intervention restores anti-tumor innate immunity in obese mice and reverses long-term immune memory defects that persist even after weight loss, a major unmet clinical challenge.
Physical activity linked to lower stroke and death risk in adults with atrial fibrillation
Arctic University of Norway, August 5 2026 (News-Medical)
Being physically active was linked to a lower risk of stroke and death for adults with atrial fibrillation, or AFib, according to new, independent research published in the Journal of the American Heart Association.
AFib is a quivering or irregular heartbeat that occurs in the heart’s upper chamber known as the atria. According to the American Heart Association, it can lead to blood clots, stroke and other heart-related conditions. The prevalence of AFib in the U.S. was estimated at 4.48% of the adult U.S. population.
The study tracked more than 87,000 adults in Norway for about 15 years, capturing information about AFib, stroke and death from national health registries.
What did the analysis find?
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Compared to adults who were inactive, adults with a low, moderate or high level of physical activity had a 9%, 19% and 18% lower risk of stroke, respectively.
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Having a low, moderate or high level of physical activity was associated with an 11%, 18% and 22% lower risk of death from any cause, respectively.
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For people with AFib, staying active was tied to living an average of 0.5 to 1.2 years longer compared to those who were inactive
Phthalates may contribute to high blood pressure in pregnant women
Harvard School of Public Health, August 10 2026 (News-Medical)
Phthalates, which are chemicals found in plastics, personal care products and hundreds of other consumer goods, may contribute to high blood pressure in pregnant women, according to a study published in the Journal of the Endocrine Society.
The researchers measured phthalate exposure and blood pressure in 338 pregnant women at three points during pregnancy. They analyzed whether higher levels of these chemicals-individually and in combination-were linked to higher blood pressure or an increased risk of pregnancy-related high blood pressure disorders.
The authors found that pregnant women with higher urine concentrations of fragrance-associated phthalates and those in personal care products had higher systolic and diastolic blood pressure markers of an increased risk of hypertensive disorders of pregnancy.
About 13% of participants in the study developed a pregnancy-related high blood pressure disorder. Women with higher levels of certain phthalates, especially those found in personal care products, tended to have higher blood pressure later in pregnancy.
Daily Collagen Supplement Alters Bone-Related Blood Markers in Female Runners, Study Says
Fitchburg State University, University of Connecticut & Mayo Clinic, August 4 2026 (Natural News)
A four-week randomized, double-blind, placebo-controlled trial found that female distance runners who took 20 grams of collagen peptides per day showed an approximately 5.1 percent rise in P1NP over four weeks, a blood marker of bone formation, while the placebo group showed no such change, according to a study published in Frontiers in Nutrition.
The collagen group also showed a drop in IL-6, an inflammatory protein linked to bone breakdown, while placebo levels held steady or rose, the study reported. The trial included 22 female runners ages 18 to 35 who ran at least 35 miles per week, and no adverse effects were reported.
Collagen is the most common and abundant protein in the body, accounting for about 30 percent of total protein content and providing structural support to bones, tendons, ligaments, and other connective tissues, according to published research.
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