Your diet may affect more than just your weight. It could also change your biological age. A new study found that older adults appeared biologically younger after only four weeks on a lower-fat diet emphasizing plant-based proteins, with reductions of up to 3 years in biological age.
A total of 104 participants aged 65–75 years, with BMIs ranging from 20 to 35, took part in the study. All were free of serious health complications and food allergies, were non-smokers, and were not vegetarians. They were randomly assigned to one of four diets in which protein accounted for 14% of total consumption.
Researchers utilized data from 20 biomarkers to determine participants’ biological age scores, including levels of insulin, cholesterol, and C-reactive protein.
Participants who lowered fat consumption or increased intake of plant-based proteins exhibited improvements in several key aging-related health biomarkers. Three of the four groups exhibited reductions in biological age, with the strongest evidence coming from the omnivorous diet that was higher in carbohydrates and lower in fat. The fourth group that adhered closely to their normal diet showed minimal to no improvement.
While the study shows diet can rapidly affect biological aging, researchers empahsize that the longevity of these benefits remains unknown. It is unclear if the reductions in biological age will last, and future studies are needed to assess their long-term sustainability and clinical significance.
To view the original scientific study click below:
Short-Term Dietary Intervention Alters Physiological Profiles Relevant to Ageing
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