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Reducing intakes of compounds called advanced glycation end products (AGEs) is associated with reducing inflammation and helping boost the body's natural defences, according to results of a newly published research paper.
AGEs are toxic substances reportedly produced in abundance in the Western diets, as a result of heating, pasteurization, drying, smoking, frying or grilling. The compounds are said to promote oxidation and inflammation, which may ultimately increase the risk of chronic diseases, such as diabetes and heart disease.
Researchers from the US National Institute on aging and Mount Sinai School of Medicine report that a simple dietary intervention that reduces intakes of AGEs may promote weight loss and improve overall health. The improvements occurred without changing caloric or nutrient intake, said the researchers.
"What is noteworthy about our findings is that reduced AGE consumption proved to be effective in all study participants, including healthy persons and persons who have a chronic condition such as kidney disease," said the study author.
The new study involved 40 healthy people aged between 18 and 45, or older than 60, and another 9 people with kidney disease. The subjects were randomly assigned to one of two diets: One group continued to consume their own regular Western diet, while the second group consumed a diet with the same calorie and nutrient content, but with 50 per cent less AGEs.
Participants in the AGE-less intervention were advised to poach, stew, or steam their meals.
After four months of intervention, blood AGE levels, lipid peroxides, inflammatory markers, and biomarkers of blood vessel health declined by as much as 60 per cent in healthy participants, said the researchers. Similar improvements were also observed in the kidney patients on the AGE-less diet, they added.
"Even though the AGEs pose a more immediate health threat to older adults, they are a similar danger for younger people, including pregnant women and children, and this needs to be addressed,"
Research paper details:
H. Vlassara, W. Cai, S. Goodman, R. Pyzik, et al. Protection against Loss of Innate Defenses in Adulthood by Low Advanced glycation End Products (AGE) Intake: Role of the Antiinflammatory AGE Receptor-1. Journal of Clinical Endocrinology and metabolism, 2009. Published online ahead of print.
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