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Impact of a Low-Insulin-Stimulating Bread on Weight Development-A Real Life Randomised Controlled Trial.

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Replacing regular bread with a low-insulin bread can help overweight individuals lose weight. This dietary change, particularly beneficial for older adults, led to significant weight reduction without other lifestyle changes.

Keywords:
breadcarbohydrateglucoseinsulinoverweightweight reduction

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Area of Science:

  • Nutrition Science
  • Metabolic Health
  • Weight Management

Background:

  • Dietary impact on body weight is typically analyzed by comparing entire diets.
  • Bread is a common dietary component across various eating patterns.
  • Modifying single food items offers a targeted approach to weight management.

Purpose of the Study:

  • To investigate the effect of substituting regular bread with a low-insulin-stimulating bread on body weight.
  • To assess weight changes in overweight adults without additional lifestyle modifications.

Main Methods:

  • A single-centre, triple-blind, randomised controlled trial was conducted.
  • Eighty overweight adult volunteers were randomized to consume either whole-grain rye bread (control) or low-insulin-stimulating bread (intervention) for 3 months.
  • Body weight change was the primary endpoint, with secondary measures including body mass index and hip circumference.

Main Results:

  • The intervention group experienced a significant mean weight reduction of -1.8 kg compared to no change in the control group (ETD -1.7 kg, p=0.007).
  • Weight loss was more pronounced in participants aged 55 years and older (-2.6 kg).
  • Significant reductions in body mass index and hip circumference were observed in the intervention group, with twice as many participants achieving ≥1 kg weight loss (p<0.001).

Conclusions:

  • Simply exchanging an insulinogenic bread for a low-insulin-stimulating bread can induce weight loss in overweight individuals.
  • This dietary modification shows particular promise for older adults.
  • Targeting specific food components like bread offers a viable strategy for weight management.