A personalized nutrition program that emphasized higher protein and fiber intake was associated with significant fat loss and more durable weight reduction over more than a year, according to new academic research.
By yourNEWS Media Newsroom
A long-term study conducted by researchers at the University of Illinois Urbana-Champaign suggests that prioritizing protein and fiber, rather than strict calorie restriction, may play a central role in achieving and maintaining meaningful weight loss.
The findings come from an analysis of participants enrolled in the Individualized Diet Improvement Program, or iDip, a dietary intervention designed to help individuals build sustainable eating habits through education rather than prescribed meal plans. Researchers followed participants for up to 25 months and evaluated changes in body weight, body composition, and adherence to dietary targets.
According to the study, participants who successfully completed the program lost an average of 12.9% of their body weight over one year. Body composition data indicated that the weight loss was largely attributable to reductions in fat mass, with participants losing an average of 7.1 kilograms of fat within the first six months while largely preserving lean muscle tissue. Waist circumference, a marker often associated with abdominal fat and metabolic risk, declined by an average of nine centimeters over a 15-month period.
The iDip program differs from conventional diet plans by focusing on nutritional literacy and flexibility. Participants were taught to evaluate foods based on protein and fiber density using visual tools rather than following rigid food lists or calorie prescriptions. The program set general targets of approximately 80 grams of protein and 20 grams of fiber per day, while allowing individuals to select foods aligned with their preferences and lifestyles.
Researchers reported that early adoption of these dietary principles was a strong indicator of long-term success. Weight loss achieved within the first three months was highly correlated with outcomes at 12 months. Participants who increased protein and fiber intake early tended to continue losing weight, while those who struggled to implement changes during the initial phase showed limited progress later in the program.
The study also examined factors beyond diet that influenced outcomes. Participants who reported a diagnosis of depression experienced significantly less weight loss than those without depression, underscoring the role of mental health in sustaining dietary changes. Researchers noted that psychological well-being appeared to affect consistency and engagement with the program.
Beyond weight reduction, the program showed benefits across a range of health profiles. Participants with conditions such as hypertension and elevated cholesterol levels were able to lose weight without sacrificing lean mass, a factor considered important for metabolic health and long-term physical function.
Researchers concluded that the results challenge traditional approaches centered on short-term calorie restriction. Instead, the findings suggest that emphasizing foundational nutrients such as protein and fiber, combined with education and individualized flexibility, may offer a more effective and sustainable framework for weight management.
Source: Natural News
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