| 摘要 |
The present invention relates to a body weight reduction method by ingestion of glucomannan, in which a diet effect is realized with safety without being affected in one's body or health. The method of the present invention permits a reduction in body weight of one whose Body Mass Index (BMI) is high by giving, to the above one within 40 minutes before each meal, a diet food mainly containing glucomannan obtained through extraction from an arum root, specifically, glucomannan having an average molecular weight of 50,000 or more. The above diet food contains 50% or more of the glucomannan, and an intake of the diet food is preferably within the range of 3.5 g to 8.0 g per day. The Body Mass Index (BMI) of one supposed to take in the diet food is limited to 23 or more.
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