What does this research mean for the field?

A workplace cafeteria-based partially hydrolyzed guar gum (PHGG) multicomponent program is feasible and acceptable, and may lead to favorable changes in self-reported gut health and metabolic risk indicators in subgroups with prediabetes or hypercholesterolemia. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate the feasibility, acceptability, and exploratory metabolic and gut health outcomes of a cafeteria-based dietary fiber intervention providing partially hydrolyzed guar gum (PHGG) in a workplace setting.

September 3, 2026Korean Journal of Human Ecology

Pre-Post Changes in Gut Health and Metabolic Risk Indicators After a Workplace Partially Hydrolyzed Guar Gum (Sunfiber®) Dietary Fiber Intervention Program: An Open-Label Single-Arm Study

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To evaluate the feasibility, acceptability, and exploratory metabolic and gut health outcomes of a cafeteria-based dietary fiber intervention providing partially hydrolyzed guar gum (PHGG) in a workplace setting.
Conducted an open-label, single-arm pre-post study over a 5-month period among 282 employees aged 20 to 70 years.
Provided one daily cafeteria meal fortified with 6.25 g of PHGG along with monthly health-promotion materials focused on glycemic control and gut health.
Analyzed pre-post changes across subsets of participants for fasting plasma glucose (n=160), lipid profiles (n=87), self-reported gut health indicators (n=187), and program satisfaction (n=224).
Total cholesterol decreased significantly from 197.64±36.86 to 189.77±39.07 mg/dL (p=0.009), with greater reductions observed among participants with hypercholesterolemia.
Fasting plasma glucose increased overall from 92.72±14.09 to 96.39±14.11 mg/dL (p=0.0004), but decreased from 110.74±16.17 to 104.05±20.69 mg/dL (p=0.018) in participants with baseline prediabetes or hyperglycemia (≥100 mg/dL).
Perceived improvements in gut health were reported by 48.1% of participants, and 52.2% reported satisfaction with the workplace program.

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Implication

Single-arm pre-post study observes reduced cholesterol and targeted glycemic benefits from workplace fiber fortification in employees, indicating the potential of cafeteria health interventions.

Cite This Study

Song et al. (2026) studied this question.

synapsesocial.com/papers/6a9935e5636c6408cfa7e84d https://doi.org/10.5934/kjhe.2026.35.4.709

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Implication

Single-arm pre-post study observes reduced cholesterol and targeted glycemic benefits from workplace fiber fortification in employees, indicating the potential of cafeteria health interventions.

Pre-Post Changes in Gut Health and Metabolic Risk Indicators After a Workplace Partially Hydrolyzed Guar Gum (Sunfiber®) Dietary Fiber Intervention Program: An Open-Label Single-Arm Study

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Discussion

Implication

Cite This Study

Pre-Post Changes in Gut Health and Metabolic Risk Indicators After a Workplace Partially Hydrolyzed Guar Gum (Sunfiber®) Dietary Fiber Intervention Program: An Open-Label Single-Arm Study

Key Points

Discussion

Implication

Cite This Study

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