Scientists at Ben-Gurion University of the Negev and collaborating institutions announced Wednesday that reducing deep belly fat through lifestyle changes can offer long-lasting protection against type 2 diabetes, even when people put weight back on years later.
The research, which appeared in the American Heart Association’s journal Circulation, drew from extended follow-up data spanning two clinical studies that tracked how dietary changes and exercise influence fat distribution and metabolic wellness. Study participants were monitored for five and 10 years following 18-month intervention programs, providing scientists with an unusual extended perspective on outcomes after structured weight management efforts conclude.
The investigation centered on visceral adipose tissue, which represents fat deposits located deep within the abdominal cavity surrounding vital organs. This type of fat differs from subcutaneous fat found beneath the skin, and earlier research has established strong connections between visceral fat and insulin resistance, inflammation, heart disease, and type 2 diabetes development.
Scientists discovered that decreasing visceral fat showed stronger connections to lasting metabolic improvements compared to general weight reduction. According to the research, a 10% decrease in visceral fat corresponded with a 28% reduction in type 2 diabetes development risk throughout the follow-up period. Study participants who achieved visceral fat reduction also demonstrated enhanced blood glucose control, better insulin function, and additional positive cardiovascular and metabolic indicators.
Researchers noted that similar long-term protective benefits were not observed for reductions in liver fat, pancreatic fat, or subcutaneous fat deposits.
These results contribute to expanding research evidence indicating that body composition and fat placement can be equally important as, or more significant than, scale weight. Medical professionals have traditionally relied on body weight and body mass index as general health risk indicators, but these metrics cannot reveal fat storage locations or metabolic activity levels.
The research indicates that lifestyle modification programs focusing on enhanced nutrition and increased physical activity could deliver enduring health benefits even when weight reduction is not permanently sustained.
