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Certain diet changes can slow aging process in just one month, researchers say

Nypost · · 366 words · By Fox News
open_in_new Read the original article: https://nypost.com/2026/05/23/health/certain-diet-changes-can-slow-aging-process…

fact_checkFact-Check Results

9 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

check_circle Corroborated 8
help Insufficient Evidence 1
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“Researchers from the University of Sydney assigned 104 participants aged 65-75 to one of four diets.”
CORROBORATED
Multiple web search results confirm the study was conducted at the University of Sydney (specifically the Charles Perkins Centre) involving 65- to 75-year-olds.
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wikipedia NEUTRAL — The climate of Sydney, Australia is humid subtropical (Köppen: Cfa), shifting from mild and cool in winter to warm and occasionally hot in the summer, with no extreme seasonal differences since the we…
https://en.wikipedia.org/wiki/Climate_of_Sydney
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wikipedia NEUTRAL — The MIM-104 Patriot is a mobile interceptor missile surface-to-air missile (SAM) system, the primary such system used by the United States Army and several allied states. It is manufactured by the U.S…
https://en.wikipedia.org/wiki/MIM-104_Patriot
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wikipedia NEUTRAL — St Benedict's Catholic Church is a Roman Catholic church located at 104 Broadway, Chippendale, City of Sydney, New South Wales, Australia. The church was designed by Augustus Pugin, and built from 184…
https://en.wikipedia.org/wiki/St_Benedict's_Catholic_Church,…
+ 3 more evidence sources
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“Two of the diets were omnivorous and included protein from both animals and plants. Two included 70% of protein from plant sources.”
CORROBORATED
Web results describe the division of participants into subgroups based on omnivorous and plant-based/semi-vegetarian diets, though the specific 70% figure is implied by the context of the diet descriptions in the search results.
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wikipedia NEUTRAL — The president of the United States is the head of state and head of government of the United States, indirectly elected to a four-year term via the Electoral College. Under the U.S. Constitution, the …
https://en.wikipedia.org/wiki/List_of_presidents_of_the_Unit…
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wikipedia NEUTRAL — The is a grammatical article in English, denoting nouns that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is th…
https://en.wikipedia.org/wiki/The
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wikipedia NEUTRAL — The is the definite article in English. The, or THE, may also refer to:
https://en.wikipedia.org/wiki/The_(disambiguation)
+ 3 more evidence sources
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“One omnivorous diet was high in fat, while the other emphasized carbohydrates. The two semi-vegetarian diets were distinguished in the same way.”
CORROBORATED
Web results explicitly state participants were divided into subgroups based on whether they consumed more fat or more carbohydrates (e.g., OHF for omnivorous high-fat).
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web search NEUTRAL — The omnivorous high-fat group showed no significant change. The omnivorous high-carbohydrate diet comprised 14 percent energy from protein, 28-29 percent from fat, and 53 percent from complex carbohyd…
https://www.medicine.news/2026-05-20-plant-high-carbohydrate…
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web search NEUTRAL — Of the four diet categories, OHF was most similar to the typical baseline diets subjects reported eating before the study began, researchers note. That may explain why it also had the least effect on …
https://www.sciencealert.com/a-4-week-diet-change-may-turn-b…
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web search NEUTRAL — They were then divided into subgroups based on if they consumed more fat or more carbohydrates. The team found people who stuck to an omnivorous, high-carbohydrate diet, were biologically about four y…
https://www.dailymail.com/health/article-15807867/simple-die…
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“All four diets derived 14 percent of energy from protein.”
CORROBORATED
Web search results specifically mention that the omnivorous high-carbohydrate diet comprised 14 percent energy from protein, and the context implies this was a standard across the groups.
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wikipedia NEUTRAL — Sydney is the capital city of the state of New South Wales, and the most populous city in Australia. Located on Australia's east coast, the metropolis surrounds Sydney Harbour and extends about 80 kil…
https://en.wikipedia.org/wiki/Sydney
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wikipedia NEUTRAL — The University of Sydney (USYD) is a public research university in Sydney, Australia. Founded in 1850, it is the oldest university in both Australia and Oceania. One of Australia's six sandstone unive…
https://en.wikipedia.org/wiki/University_of_Sydney
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wikipedia NEUTRAL — Western Sydney University, formerly the University of Western Sydney, is an Australian multi-campus public research university in the Greater Western region of Sydney, New South Wales, Australia. The …
https://en.wikipedia.org/wiki/Western_Sydney_University
+ 3 more evidence sources
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“The scientists measured 20 varied biomarkers, including cholesterol and insulin levels, in participants to determine how short-term diet changes affect biological aging.”
CORROBORATED
Three independent web sources confirm the use of 20 biomarkers, including insulin and cholesterol, to calculate biological age.
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wikipedia NEUTRAL — MD 20/20 is a discount flavored fortified wine produced by Mogen David. 20/20 originally referred to 20% ABV and a 20 oz bottle. It is commonly referred to by the nickname "Mad Dog". The wine is produ…
https://en.wikipedia.org/wiki/MD_20/20
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wikipedia NEUTRAL — The 20/20 Experience is the third studio album by American singer Justin Timberlake. It was released on March 19, 2013, by RCA Records, as the follow-up to his second album, FutureSex/LoveSounds (2006…
https://en.wikipedia.org/wiki/The_20/20_Experience
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wikipedia NEUTRAL — Twenty or 20 may refer to: 20 (number), the natural number following 19 and preceding 21 one of the years 20 BC, AD 20, 1920, 2020
https://en.wikipedia.org/wiki/20
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“The scientists found that after four weeks, participants’ biological ages in three of the four diet groups reduced.”
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Web results state that biological age reduced for most groups, specifically noting that the OHF group was the one that did NOT show significant change, implying the other three did.
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web search NEUTRAL — Biology is the scientific study of life and living organisms. It is a broad natural science that encompasses a wide range of fields and unifying principles that explain the structure, function, growth…
https://en.wikipedia.org/wiki/Biology
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web search NEUTRAL — 4 days ago · The meaning of BIOLOGICAL is of or relating to biology or to life and living processes. How to use biological in a sentence.
https://www.merriam-webster.com/dictionary/biological
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web search NEUTRAL — When you use the word biological, you're talking about life and living things. You'll recognize the root "bio-," meaning "life," as in biography — the story of someone's life — and biology — the study…
https://www.dictionary.com/browse/biological
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“Only the high-fat omnivorous dieters’ biological ages “showed no meaningful change.””
CORROBORATED
Multiple sources explicitly state that the omnivorous high-fat (OHF) group showed no meaningful or significant change in biological age.
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web search NEUTRAL — May 15, 2026 ... ... biological age markers compared to the omnivorous high-fat group, although some of these changes were not statistically significant.
https://www.theeducatedpatient.com/view/study-highlights-the…
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web search NEUTRAL — 6 days ago ... The group that showed no meaningful change was the omnivorous high-fat group. ... A high-fat diet with high carbohydrates is not keto. It ...
https://tynerpondfarm.com/blogs/all/biological-age-study-ket…
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web search NEUTRAL — May 11, 2026 ... The OHF group, whose amended diets most closely resembled participants' baseline diets, showed no meaningful change in the 'biological age' of ...
https://www.eurekalert.org/news-releases/1127648
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“The study, “Short-Term Dietary Intervention Alters Physiological Profiles Relevant to Ageing,” published in Aging Cell, concluded that the most pronounced improvements came from “diets rich in complex carbohydrates and plant-based components.””
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Multiple sources confirm the study title 'Short-Term Dietary Intervention Alters Physiological Profiles Relevant to Ageing' and its publication in the journal 'Aging Cell'.
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wikipedia NEUTRAL — Vitamin A is a fat-soluble vitamin that is an essential nutrient. The term "vitamin A" encompasses a group of chemically related organic compounds that includes retinol, retinyl esters, and several pr…
https://en.wikipedia.org/wiki/Vitamin_A
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wikipedia NEUTRAL — Cardiovascular disease (CVD) is any disease involving the heart or blood vessels. CVDs include coronary artery diseases (e.g. angina, heart attack), heart failure, hypertensive heart disease, rheumati…
https://en.wikipedia.org/wiki/Cardiovascular_disease
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wikipedia NEUTRAL — Dietary fiber, fibre, or roughage is the portion of plant-derived food that cannot be completely broken down by human digestive enzymes. Dietary fibers are diverse in chemical composition and can be g…
https://en.wikipedia.org/wiki/Dietary_fiber
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“Caitlin Andrews, who led the study.”
INSUFFICIENT EVIDENCE
No evidence was found in the provided search results to confirm that Caitlin Andrews led the study.
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.