This 2017 longitudinal study analyzed data from 1,632 healthy female twins in the UK to assess the relationship between gut microbiome diversity, dietary fiber intake, and long-term weight gain. The findings revealed that higher gut microbiome diversity and increased fiber intake were both independently associated with lower weight gain over
This 6-month randomized controlled trial evaluated weight loss outcomes among 63 overweight adults (BMI 25–49.9 kg/m², aged 18–65) assigned to one of five diets: vegan, vegetarian, pesco-vegetarian, semi-vegetarian, or omnivorous. Participants attended weekly group meetings initially, transitioning to monthly sessions. No caloric restrictions were imposed. At 6 months, the vegan
This randomized controlled trial evaluated the effectiveness of meal replacements (MR) compared to a structured low-fat, low-calorie diet (C) in 66 overweight/obese Australian adults aged 20–65 with elevated triglycerides. Over two 3-month phases, both groups followed a 6000 kJ/day regimen. The MR group consumed two Slim-Fast products and a low-fat
This 2006 review explores the role of short-chain fatty acids (SCFAs)—primarily acetate, propionate, and butyrate—produced through the fermentation of dietary fibers and resistant starches by colonic microbiota. SCFAs serve as energy sources for colonocytes, regulate colonic pH, and influence systemic metabolic processes. The production of SCFAs is influenced by the
This 2014 study investigates how acetate, a short-chain fatty acid produced by gut microbial fermentation of dietary fiber, influences appetite regulation. Using in vivo imaging and metabolic tracing in mice, researchers demonstrated that acetate crosses the blood-brain barrier and accumulates in the hypothalamus. There, it enhances glutamate–glutamine and GABA neurotransmitter
This 2013 randomized controlled trial assessed the impact of glucomannan supplementation on weight loss in 53 overweight and moderately obese adults over an 8-week period. Participants consumed 1.33 grams of glucomannan or placebo with water before meals. The study found no significant differences between the glucomannan and placebo groups in
This comprehensive 2008 review by Al-Farsi and Lee examines the nutritional composition and health-promoting properties of date fruits (Phoenix dactylifera L.) and their seeds. Date flesh is rich in natural sugars (fructose and glucose), providing approximately 314 kcal per 100 g, and contains essential minerals such as potassium, magnesium, copper,
This 2013 observational study published in PLoS One (DOI: 10.1371/journal.pone.0067833) analyzed data from 9,895 U.S. adults in the NHANES survey to assess how lifestyle factors impact inflammation, as measured by high-sensitivity C-reactive protein (hsCRP), and how these effects vary by BMI. The study found that in normal weight and overweight
This observational study examined associations between various demographic, lifestyle, and dietary factors and systemic inflammation markers in adults aged 50–76 years. Higher age and BMI were linked to increased levels of most inflammation markers, while physical activity, dietary vitamin C, fiber intake, and omega-3 fatty acids were associated with lower
This 2021 randomized controlled trial published in Gastroenterology (PMID: 33865841) evaluated the accuracy and reproducibility of sugar probe testing to assess intestinal permeability in healthy adults and IBS-D patients. Researchers found that ^13C-mannitol, unlike ^12C-mannitol, served as a reliable marker for small intestinal permeability, with consistent results unaffected by age,
