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Cited by 29Food composition and propertiesNutritional Studies and DietNutrition, Genetics, and Disease

Effects of Green-Leafy Vegetable Intake on Postprandial Glycemic and Lipidemic Responses and ^|^alpha;-Tocopherol Concentration in Normal Weight and Obese Men

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MARUYAMA, Chizuko, KIKUCHI, Nahoko, MASUYA, Yumiko, HIROTA, Saki, ARAKI, Risa, MARUYAMA, Taro·2013·Journal of Nutritional Science and Vitaminology
DOI 10.3177/jnsv.59.264
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Abstract

Vegetable consumption has been encouraged as a component of nutritional education for obese and insulin-resistant patients. However, the benefits of vegetable intake in a therapeutic diet on postprandial glycemic and lipidemic responses have not been clarified. We studied the effects of the intake of spinach, a green-leafy vegetable rich in dietary fiber and α-tocopherol, with a fat-rich meal on postprandial glycemic and lipidemic changes. Fourteen normal weight and 10 obese men consumed three test meals of bread, as a control, bread and butter, and bread and butter with boiled spinach. Blood samples were obtained prior to and 30, 60, 120, 180 and 240 min after consuming the test meals. Compared with the bread meal, consumption of the bread and butter meal showed a reduced peak glucose response at 30 min in normal (p<0.05) but not in obese subjects. The increase in triglyceride and decrease in LDL-cholesterol were greater after the butter-containing meal than after the bread meal (p<0.05). The α-tocopherol/lipid level decreased and remained low after the bread and butter meal, but the decrease was smaller with the spinach-containing meal in obese subjects (p<0.05). These results suggest that green-leafy vegetable intake with a fat-rich meal is effective for supplying postprandial α-tocopherol in obese subjects, but consumption of a regular-sized dish cannot be expected to improve abnormal postprandial hyperglycemic or hyperlipidemic responses.

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  • Maruyama et al. reported that consumption of spinach in obese and insulin-resistant patients supplies antioxidants and improves lipid profiles.

    “In a randomized control trial, Maruyama et. al. reported that the consumption of spinach in obese and insulin-resistant patients supplies antioxidants and improves lipid profiles in patients [172].”

    From Ecdysterone and Turkesterone—Compounds with Prominent Potential in Sport and Healthy Nutrition (2024) · cites this paper as [172]

    The Abstract and Discussion report that spinach supplied postprandial α-tocopherol in obese subjects. But the Discussion explicitly says a regular-sized serving did not suppress postprandial triglycerides and could not be expected to improve lipidemic responses—the opposite of the claimed lipid-profile improvement. The study enrolled normal-weight and obese men, not a group identified as insulin-resistant patients. (LLM, conf=0.88)

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  • Consumption of spinach is not associated with adverse effects.

    “Furthermore, the consumption of spinach is not associated with adverse effects [162,171,172,173,174,175,176,177,178].”

    From Ecdysterone and Turkesterone—Compounds with Prominent Potential in Sport and Healthy Nutrition (2024) · cites this paper as [172]

    The Subjects section describes a spinach-containing test meal, and the Discussion reports its effects on postprandial glucose, triglycerides, and α-tocopherol. Neither section addresses adverse effects or safety; searches for adverse events, side effects, and symptoms found no relevant passage in our copy. (LLM, conf=0.74)

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Authors
MARUYAMA, C., KIKUCHI, N., MASUYA, Y., HIROTA, S., ARAKI, R., & MARUYAMA, T.
Affiliations
Japan Women's University (JP)
ORCID
ARAKI, Risa
Venue
Journal of Nutritional Science and Vitaminology
Publisher
Center for Academic Publications Japan
Published
2013
Volume
59
Issue
4
Pages
264-271
ISSN
  • 0301-4800 (ISSN-L)
  • 1881-7742
DOI
10.3177/jnsv.59.264
OpenAlex
W1982628573
Cited by
29
References
45
Citations by year
2026: 1 · 2025: 3 · 2024: 4 · 2023: 2 · 2022: 3 · 2020: 4 · 2019: 3 · 2018: 3 · 2016: 2 · 2015: 2 · 2014: 2
FWCI
1.86
Type
journal article
Language
en
Open access
Locations
  • Journal of Nutritional Science and Vitaminology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Ministry of Education, Culture, Sports, Science and Technology
  • Japan Society for the Promotion of Science (18300257)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Food composition and properties
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Nutrition, Genetics, and Disease
Keywords
leafy vegetables, spinach, postprandial glycemic response, alpha-tocopherol, vitamin E, obesity, dietary fat, triglycerides, LDL cholesterol, dietary fiber, blood glucose
MeSH terms
Adult, Blood Glucose, Butter, Dietary Carbohydrates, Dietary Fats, Dietary Fiber, Humans, Hyperglycemia, Hyperlipidemias, Lipids, Cholesterol, LDL, Male, Obesity, Reference Values, Triglycerides, Vegetables, Plant Leaves, Spinacia oleracea, Postprandial Period, alpha-Tocopherol, Plant Preparations, Young Adult

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