Effects of cake made from whole soy powder on postprandial blood glucose and insulin levels in human subjects.
We investigated the glycemic index (GI) and the insulinemic index (II) of cake made from whole soy powder (SBC) and the suppressive effects of SBC on the postprandial blood glucose and insulin by other carbohydrate foods. Furthermore, breath hydrogen excretion was simultaneously investigated. Twenty subjects were given 114 g SBC, 144 g cooked paddy-rice, and 60 g SBC with 144 g cooked paddy-rice in random order using a within-subject, repeated-measures design. Blood and end-expiratory gas were collected at the indicated periods after ingestion. The GI and the II of SBC were 22+/-6 and 48+/-29, respectively. The elevation of blood glucose by cooked paddy-rice was significantly suppressed by the addition of 60 g SBC, although the insulin secretion did not decrease. Breath hydrogen excretion by the addition of SBC to 144 g cooked paddy-rice was not significantly increased in comparison with cooked paddy-rice alone. SBC was of low GI and low II, but the postprandial insulin secretion in response to cooked paddy-rice was not suppressed.
Graduate School of Human Health Science, Siebold University of Nagasaki, Nagayo, Nagasaki, Japan. okutsune@sun.ac.jp
Tsuneyuki
T
Oku
Mariko
M
Nakamura
Ayako
A
Takasugi
Michiru
M
Hashiguchi-Ishiguro
Kenichi
K
Tanabe
Sadako
S
Nakamura
D000293:Adolescent; D000328:Adult; D001786:Blood Glucose / Q000032:analysis*; D015992:Body Mass Index; D001944:Breath Tests; D004040:Dietary Carbohydrates / Q000008:administration & dosage / Q000032:analysis; D004041:Dietary Fats / Q000008:administration & dosage / Q000032:analysis; D004043:Dietary Fiber / Q000008:administration & dosage / Q000032:analysis; D004044:Dietary Proteins / Q000008:administration & dosage / Q000032:analysis; D005260:Female; D055951:Functional Food / Q000032:analysis*; D038321:Glycemic Index; D006801:Humans; D006859:Hydrogen / Q000378:metabolism; D006943:Hyperglycemia / Q000097:blood / Q000178:diet therapy / Q000517:prevention & control*; D007328:Insulin / Q000097:blood*; D008297:Male; D012275:Oryza / Q000737:chemistry; D012639:Seeds / Q000737:chemistry; D045730:Soy Foods / Q000032:analysis*; D013997:Time Factors; D055815:Young Adult
D001786:Blood Glucose; D004040:Dietary Carbohydrates; D004041:Dietary Fats; D004043:Dietary Fiber; D004044:Dietary Proteins; D007328:Insulin; D006859:Hydrogen