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Survey study, 2004

Does what you eat affect premenstrual symptoms?

Eating more fat was linked with worse premenstrual symptoms, while eating more carbohydrate-rich foods was linked with fewer symptoms. Soy products had no clear link to symptoms.

Early or limited evidence 189 Japanese women aged 19-34 in colleges and nursing schools

What they did

Researchers studied 189 Japanese women aged 19-34. They asked about diet using a food frequency questionnaire and measured premenstrual symptoms, comparing symptoms between different phases of the menstrual cycle.

What they found

Soy products and isoflavones were not significantly linked to premenstrual symptoms. High intake of total, saturated, and monounsaturated fats was linked with worse total symptoms and more pain. Low intake of carbohydrate-rich foods was linked with worse symptoms.

What it means for you

Diet may play a role in premenstrual symptoms, particularly fat and carbohydrate intake. The study only included Japanese women in colleges and nursing schools, so findings may not apply to other populations.

189

Japanese women studied

19-34

age range

High fat intake

linked with worse symptoms

About the study

Original title
Soy, fat and other dietary factors in relation to premenstrual symptoms in Japanese women
Authors
Nagata C, Hirokawa K, Shimizu N et al.
Journal
BJOG : an international journal of obstetrics and gynaecology
Year
2004
Study design
Survey study
What was tested
Diet and soy intake (observed, not tested)

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