In the glucomannan noodle (GMN) diet, the participants received two servings (400 g) of GMN every day to replace their daily carbohydrate intake for 4 weeks, with each serving of glucomannan noodles weighing up to 200 g with 2 g of glucomannan.

In the placebo noodle (PN) diet, the participants received the participants received the same amount of noodles without glucomannan.

"First Intervention (4 weeks, GMN)", "Washout (2 weeks)" and "Second Intervention (4 weeks, PN)"

First GMN Then PN

"First Intervention (4 weeks, PN)", "Washout (2 weeks)" and "Second Intervention (4 weeks, GMN)"

First PN Then GMN

Total

Sex: Female, Male

Body weight by weighting scale (kilogram). Lower scores mean a better outcome in subjects.

GMN Diet

PN Diet

Body Weight

Waist Circumference

Glycemic Index

LDL-C (low density lipoprotein cholesterol) analysis

Lipid Index

Overall Study

Dr. Sing-Chung Li

The 100 g GMN noodle contains 1 g of konjac glucomannan powder. Participants approximately consumed 2 g GMN per day in 200 g of noodle. The intervention period was 4 weeks long. Meanwhile, the participants remained their usual eating habits except consuming any probiotics or prebiotics.

Isocaloric noodle with no konjac glucomannan powder in placebo comparator. The PN-participants daily consumed placebo noodle without any added GMN (approximately 200 g noodle per day). The intervention period was 4 weeks long. Meanwhile, the participants will remain their usual eating habits except consuming any probiotics or prebiotics.

Metabolic Syndrome

The participants received two servings (400 g) of GMN every day to replace their daily carbohydrate intake for 4 weeks.

Glucomannan noodle

In the placebo noodle diet, the participants received the same amount of noodles without glucomannan for 4 weeks.

Placebo noodle

Effects of Konjac Glucomannan Noodle Intervention in Subjects With Metabolic Syndrome

Office of Human Research, Taipei Medical University

Taipei Medical University

Half Carbohydrate and Half Non-Caloric Konjac Noodles - 122.5g Konjac

Non-Caloric Konjac Noodles (viscous gel meal) - 240g Konjac

Obesity

Replacement of carbohydrate noodles with non-caloric Konjac noodles (viscous gel meal)

Konjac noodles

Carbohydrate and Konjac Noodles

Carbohydrate noodles

Risk Factor Modification Centre

Satiety Study of a Carbohydrate Meal to a Highly Viscous Gel Meal

Comparing the Satiety Scores of a Carbohydrate Meal to a Meal of Equal Volume in Which Half of the Volume is Replaced With a Highly Viscous Gel.

Objective satiety will be measured through subsequent food intake.
At each visit, participants will consume a pre-weighed snack (wafer cookies) that will be administered ad libitum at 90mins after consumption of the test meal. Subsequent food intake will be calculated by weighing the amount of the snack food left after consumption.

At each visit, participants will record their subjective satiety ratings using a 100 mm visual analogue scale and these rating will be combined into a total subjective appetite score using the formula (Q1+Q2+(100-Q3)+Q4)/4.

amorphophallus bulbifer/carbohydrate

Effects of Konjac Glucomannan Noodle Intervention in Subjects With Metabolic Syndrome

Satiety Study of a Carbohydrate Meal to a Highly Viscous Gel Meal

Blood Glucose Response to Highly Viscous Polysaccharide Enriched Biscuits in Healthy and Diabetic Subjects

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