--- title: Can eating fermented foods with Aspergillus oryzae reduce belly pain from PMS? description: Eight out of 11 women (72.7%) experienced abdominal discomfort during the luteal phase when PMS happens. Eating fermented food containing Aspergillus oryzae m url: https://niyora.com/research/papers/the-effect-of-fermented-food-containing-aspergillus-oryzae-amazake-or-raw-2024/ --- - [Niyora](https://niyora.com/) - [Research](https://niyora.com/research/) - [Library](https://niyora.com/research/library/) - Can eating fermented foods with Aspergillus oryzae reduce belly pain from PMS? Study, 2024 # Can eating fermented foods with Aspergillus oryzae reduce belly pain from PMS? Eight out of 11 women (72.7%) experienced abdominal discomfort during the luteal phase when PMS happens. Eating fermented food containing Aspergillus oryzae may reduce PMS belly symptoms by 72.7%. Early or limited evidence 11 healthy Japanese women in their 20s ## What they did 11 healthy Japanese women in their 20s ate fermented food (Amazake or Raw-SHIOKOJI) containing Aspergillus oryzae for 28 days. Researchers examined them before, during, and after eating the food. Women kept daily records of their food, bowel movements, and menstruation. ## What they found Eight out of 11 women (72.7%) experienced abdominal discomfort during the luteal phase, and all 11 experienced it during their menstrual period. The intake of fiber, fat, protein, and carbohydrate was similar between groups. Eating fermented food containing Aspergillus oryzae may reduce PMS abdominal symptoms by 72.7%. ## What it means for you This small study suggests that traditional Japanese fermented foods might help with belly pain during PMS. The main limits are that only 11 women were studied (all in their 20s and Japanese), so we don't know if it would work for other groups, and there was no control group of women not eating the food to compare. 11 Women studied 72.7% With abdominal discomfort or symptom reduction 28 days Length of each study phase ## About the study Original title The Effect of Fermented Food Containing Aspergillus Oryzae (Amazake or Raw-SHIOKOJI) Consumption on Abdominal Symptoms Associated with Premenstrual Syndrome in Japanese Women Authors Noriaki Wakana, Mami Wakana, Sakiko Inaba et al. Journal Journal of Nutrition and Food Security Year 2024 Study design Study Participants 11 What was tested Eating fermented food containing Aspergillus oryzae (Amazake or Raw-SHIOKOJI) Open access Yes Read the paper [doi.org/10.18502/jnfs.v9i4.16887](https://doi.org/10.18502/jnfs.v9i4.16887) ## Topics [Premenstrual syndrome (PMS)](https://niyora.com/research/topics/condition-pms/)[Menstrual cycle and mood](https://niyora.com/research/topics/condition-cycle-mood/)[Pain and headache](https://niyora.com/research/topics/symptom-pain/) Research tells you what helps on average. Niyora helps on the day it hits. Calm down, see it another way, and decide what to say, with a PMS and PMDD app built by a doctor. ## Related studies Cohort study, 2025 How common is PMS in Chinese teenage girls, and what factors are linked to it? Systematic review, 2023 What hormonal treatments have been tested for PMDD, menstrual migraine, and catamenial epilepsy? Systematic review, 2021 Does damask rose help reduce menstrual pain, headache, fatigue, anxiety, and bloating? Randomised trial, 2015 Which birth control pill better reduces PMS and menstrual symptoms: nomegestrol acetate or drospirenone? Lab study, 2026 Do core stability exercises help women with PMDD? Study, 2026 What are premenstrual syndrome and premenstrual dysphoric disorder? Ask AI about this page Copy prompt ChatGPT ↗ Claude ↗ Perplexity ↗ Google AI Mode ↗ Grok ↗