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Cited by 435Phytoestrogen effects and researchNutritional Studies and DietPhytochemicals and Antioxidant Activities

Estimated Asian adult soy protein and isoflavone intakes

Messina, Mark, Nagata, Chisato, Wu, Anna H.·2006·Nutrition and Cancer
DOI 10.1207/s15327914nc5501_1
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Abstract

There is substantial interest in the possible anticancer effects of soy foods. In part, this is because of the historically low incidence rates of breast and prostate cancer in Asia. Of the several putative soybean chemopreventive agents, isoflavones have received the most attention. Awareness of this research has led increasing numbers of consumers to use soy foods, isoflavone-fortified foods, and isoflavone supplements. Therefore, there is a need for guidance regarding appropriate isoflavone intake levels. To this end, this article analyzed soy protein (as a surrogate for isoflavones) and isoflavone intake of the major soy food-consuming countries using individual dietary surveys for the bulk of the information. In total, 24 surveys from 4 countries that met the inclusion criteria were identified: Japan (n = 11), China (n = 7), Hong Kong (n = 4), and Singapore (n = 2). The results indicate that older Japanese adults consume approximately 6-11 g of soy protein and 25-50 mg of isoflavones (expressed as aglycone equivalents) per day. Intake in Hong Kong and Singapore is lower than in Japan, whereas significant regional intake differences exist for China. Evidence suggests that < or =10% of the Asian population consumes as much as 25 g of soy protein or 100 mg of isoflavones per day. The applicability of these findings for making soy intake recommendations for non-Asians is discussed.

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  • The traditional Japanese diet contains between 6-11 g of soy protein and 25-50 mg isoflavones; top percentiles of soy intake in Asian studies consume as much as 20 g soy protein or 100 mg isoflavones per day, while the cut-off for top quartiles of intake among Western populations is in the range of a few hundred micrograms per day.

    “The traditional Japanese diet contains between 6-11g of soy protein and 25-50mg isoflavones; top percentiles of soy intake in Asian studies consume as much as 20g soy protein or 100mg isoflavones per day [188], while the cut off for the top quartiles of intake among Western populations is in the range of a few hundred micrograms (mcg) per day [52,74].”

    From Soy, Red Clover, and Isoflavones and Breast Cancer: A Systematic Review (2013) · cites this paper as [188]

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Authors
Messina, M., Nagata, C., & Wu, A. H.
Affiliations
Loma Linda University (US)
ORCID
Venue
Nutrition and Cancer
Publisher
Informa UK Limited
Published
2006-07
Volume
55
Issue
1
Pages
1-12
ISSN
  • 0163-5581 (ISSN-L)
  • 1532-7914
DOI
10.1207/s15327914nc5501_1
OpenAlex
W2089775638
Cited by
435
References
0
Citations by year
2026: 15 · 2025: 18 · 2024: 9 · 2023: 19 · 2022: 21 · 2021: 21 · 2020: 22 · 2019: 14 · 2018: 25 · 2017: 29 · 2016: 21 · 2015: 36 · 2014: 23 · 2013: 28 · 2012: 26
FWCI
2.70
Type
journal article
Language
en
Open access
closed
Locations
  • Nutrition and Cancer (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Phytoestrogen effects and research
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
  • Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
Keywords
isoflavones, Asian adults, soy products, chemoprevention, breast cancer, prostate cancer, Japan, China, Hong Kong, Singapore, dietary surveys
MeSH terms
Adolescent, Adult, Aged, Child, Child, Preschool, China, Diet Surveys, Female, Hong Kong, Humans, Infant, Isoflavones, Japan, Male, Middle Aged, Neoplasms, Singapore, Anticarcinogenic Agents, Age Distribution, Soybean Proteins

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