Time-Programmed Guarana Extract-EGCG-Konjac Glucomannan Matrix for Weight Management: Formulation Performance, Satiety Signaling, and Translational Evidence

Authors

  • Jabar Yassine
  • Gregg L. Semenza
  • Ethan Blake

DOI:

https://doi.org/10.62051/ijafsr.v4n1.07

Keywords:

Guarana extract, Epigallocatechin gallate, Konjac glucomannan, Programmed release, Satiety, Weight management, GLP-1, Short-chain fatty acids

Abstract

Background: Obesity remains a major global health problem, and practical weight-management products often fail because thermogenic ingredients, catechins, and satiety fibers are combined without a delivery system that protects labile actives or coordinates gastrointestinal exposure [1]. We therefore evaluated a time-programmed guarana extract-EGCG-konjac glucomannan (KGM) matrix and interpreted its disclosed formulation-performance dataset alongside published human and mechanistic evidence. Methods: We reviewed the disclosed composition, comparator results, gastrointestinal release behavior, animal-model outcomes, and short-term volunteer satiety observations, and we complemented these data with a structured PubMed- and WHO-based literature search through March 2026. Results: In the disclosed dataset, 2-h EGCG retention in simulated gastric fluid remained 83.9–88.7% for qualified formulations but only 31.7% for the parameter-mismatched comparator. Qualified matrices sustained intestinal release (65.8–71.2% at 6 h) and preserved near-complete colonic release (96.7–98.1% at 12 h). In obese mice, the benchmark embodiment reduced body weight by 21.3%, body-fat percentage by 32.7%, and food intake by 28.4% versus model control, with concurrent rises in GLP-1 and fecal butyrate. Published studies provide biologically concordant support: EGCG-caffeine/guarana mixtures increased 24-h energy expenditure in a randomized crossover trial [2], low-dose EGCG increased postprandial fat oxidation in obese men [3], gelled KGM reduced appetite and energy intake in healthy adults [5], and a 2024 dose-response meta-analysis reported significant reductions in body mass, BMI, and body-fat percentage with green tea extract supplementation [4]. Conclusion: We found that the differentiating value of the NVTIA platform lies primarily in matrix architecture rather than ingredient listing alone. The combined evidence supports a formulation-level rationale for staged satiety and metabolic support, while confirming that independent clinical validation remains necessary.

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References

[1] World Health Organization. Obesity and overweight. Updated 8 December 2025.

[2] Bérubé-Parent S, Pelletier C, Doré J, Tremblay A. Effects of encapsulated green tea and Guarana extracts containing a mixture of epigallocatechin-3-gallate and caffeine on 24 h energy expenditure and fat oxidation in men. Br J Nutr. 2005; 94(3):432-436. doi:10.1079/BJN20051502.

[3] Thielecke F, Rahn G, Böhnke J, Adams F, Birkenfeld AL, Jordan J, Boschmann M. Epigallocatechin-3-gallate and postprandial fat oxidation in overweight/obese male volunteers: a pilot study. Eur J Clin Nutr. 2010; 64(7):704-713. doi:10.1038/ejcn.2010.47.

[4] Asbaghi O, et al. The effects of green tea extract supplementation on body composition, obesity-related hormones and oxidative stress markers: a grade-assessed systematic review and dose-response meta-analysis of randomised controlled trials. Br J Nutr. 2024; 131(7):1125-1157. doi:10.1017/S000711452300260X.

[5] Au-Yeung F, Jovanovski E, Jenkins AL, Zurbau A, Ho HVT, Vuksan V. The effects of gelled konjac glucomannan fibre on appetite and energy intake in healthy individuals: a randomised cross-over trial. Br J Nutr. 2018; 119(1):109-116. doi:10.1017/S0007114517003233.

[6] Zalewski BM, Chmielewska A, Szajewska H. The effect of glucomannan on body weight in overweight or obese children and adults: a systematic review of randomized controlled trials. Nutrition. 2015; 31(3):437-442.e2. doi:10.1016/j.nut.2014.09.004.

[7] Pokushalov E, et al. The Impact of Glucomannan, Inulin, and Psyllium Supplementation (SolowaysTM) on Weight Loss in Adults with FTO, LEP, LEPR, and MC4R Polymorphisms: A Randomized, Double-Blind, Placebo-Controlled Trial. Nutrients. 2024; 16(4):557. doi:10.3390/nu16040557.

[8] Jin H, Yao L, Chen W, Hou T, Li J, Li B. Konjac glucomannan inhibits appetite of obese mice by suppressing hypothalamic inflammatory response and Agrp/Npy neuron expression. J Agric Food Chem. 2024; 72(44):24489-24503. doi:10.1021/acs.jafc.4c05901.

[9] Andersen T, Fogh J. Weight loss and delayed gastric emptying following a South American herbal preparation in overweight patients. J Hum Nutr Diet. 2001; 14(3):243-250.

[10] 10. Baladia E, Basulto J, Manera M, Martínez R, Calbet D. Effect of green tea or green tea extract consumption on body weight and body composition: systematic review and meta-analysis. Nutr Hosp. 2014;29(3):479-490. doi:10.3305/nh.2014.29.3.7118.

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Published

29-04-2026

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Section

Articles

How to Cite

Yassine, J., Semenza, G. L., & Blake, E. (2026). Time-Programmed Guarana Extract-EGCG-Konjac Glucomannan Matrix for Weight Management: Formulation Performance, Satiety Signaling, and Translational Evidence. International Journal of Agriculture and Food Sciences Research, 4(1), 76-82. https://doi.org/10.62051/ijafsr.v4n1.07