Client: 32-year-old-female
Initial presentation: The client, a 32-year-old-female, presents with cyclical mood disturbances occurring 7-10 days prior to menstruation. Symptoms include intense irritability, anxiety, low mood, episodes of tearfulness, and difficulty concentrating. She reports that these symptoms significantly impact her work performance and relationships but resolve within 1-2 days of menstruation commencing. She has not received a formal diagnosis, but suspects PMDD based on symptom tracking over the past three months.
Physical symptoms include breast tenderness, headaches, fatigue and sleep disturbances during the luteal phase.
The client also reports symptoms suggestive of histamine excess, including intermittent hives, facial flushing, nasal congestion, and headaches that worsen premenstrually. She notes increased sensitivity to foods such as aged cheese, chocolate, and leftovers, which naturally develop increased histamine levels and can trigger headaches or skin reactions. Digestive symptoms include bloating and occasional loose stools, particularly in the days leading up to menstruation.
No current medications. No known allergies.
Diet consists of moderate intake of processed foods and frequent consumption of high-histamine foods and beverages (fermented dairy, wine, takeaway meals). Alcohol intake is 2-3 glasses of wine, 2-3 times per week. Water intake is 1.5L daily. During her luteal phase, she reports reduced stress tolerance and sleep quality. Physical activity consists of moderate-intensity gym sessions 2-3x weekly.
Naturopathic assessment: 32-year-old female with suspected PMDD presents with cyclical mood disturbances, fatigue, headaches and sleep disturbances, particularly during the luteal phase. Additional symptoms, including facial flushing, hives and food sensitivities, are consistent with histamine intolerance. Likely caused by hormone sensitivity, histamine dysregulation, impaired detoxification, gut dysfunction and HPA axis dysregulation.
Key factors considered:
- Hormone sensitivity and neurotransmitter dysregulation - PMDD is characterised by an increased sensitivity to normal hormone fluctuations, particularly progesterone metabolites that influence GABA and serotonin pathways. This can lead to mood instability, anxiety and depressive symptoms despite normal hormone levels.
- Histamine intolerance - Oestrogen can increase histamine release, while histamine in turn can stimulate further oestrogen production, creating a cyclical feedback loop. Elevated histamine may contribute to irritability, anxiety, sleep disturbances, headaches, facial flushing and skin reactions, particularly in the luteal phase.
- Liver detoxification capacity - The liver has a primary role in metabolising oestrogen and histamine. Alcohol intake, ultra-processed foods and chronic stress can impair detoxification pathways, contributing to recirculation and accumulation of both compounds.
- Gut dysfunction - The gut is essential for histamine breakdown (via diamine oxidase, DAO) and oestrogen secretion. Gut dysbiosis and low fibre intake may impair these processes, contributing to systemic inflammation and symptom exacerbation.
- HPA axis dysregulation - Chronic stress elevates cortisol, which can increase histamine release, disrupt sleep and impair hormone signalling, exacerbating PMDD symptoms.
Herbal medicine:
Ashwagandha (Withania somnifera) - May help support the neuropsychiatric symptoms of PMDD by modulating GABAergic signalling and the HPA axis, with potential benefits for alleviating fatigue, anxiety and stress reactivity.
Baical skullcap (Scutellaria baicalensis) - Exhibits anti-inflammatory and mast cell stabilising effects, reducing degranulation processes that result in characteristic hives, itching and facial flushing.
Saffron (Crocus sativus) - Has shown promising antidepressant and anxiolytic effects relevant to PMDD's affective symptoms in clinical trials. These effects are mediated by active compounds, crocin and safranal, which modulate the monoaminergic pathway by inhibiting reuptake of serotonin, dopamine and norepinephrine.
Schisandra (Schisandra chinensis) - An adaptogen and hepatoprotective that supports liver detoxification and improves stress resilience.
Herbal formula - 200 mL
Ashwagandha (Withania somnifera) 3:2 - 50 mL
Baical skullcap (Scutellaria baicalensis) 1:2 - 60 mL
Saffron (Crocus sativus) 1:20 - 20 mL
Schisandra (Schisandra chinensis) 1:2 - 70 mL
Dosage: 7.5 mL twice daily (BD).
Note: Client is advised to drink one glass of water with each dose of herbal medicine, to support the liver and kidneys natural processing of alcohol. She was also advised that she will likely need to take the herbal formula for at least three months to assess efficacy.
Additional recommendations:
Dietary modifications
- Reduce high-histamine foods - Limit intake of aged cheese, alcohol, processed meats, fermented foods and leftovers, while prioritising fresh, whole foods to reduce overall histamine load.
- Support oestrogen metabolism - Include at least two servings of cruciferous vegetables (broccoli, kale, cauliflower, cabbage) daily. Cruciferous indoles including indole-3-carbinol (I3C) and di-indoyl-methane (DIM) promote oestrogen detoxification through the liver.
- Increase daily fibre intake - Supports bowel regularity and prevents oestrogen reabsorption.
- Increase hydration - Increase water intake to 2-2.5L daily to support detoxification processes.
- Reduce alcohol intake - Alcohol, particularly red wine and beer, is high in histamine. It drives systemic inflammation, and frequent consumption overloads the liver. The strain alcohol places on the liver is likely to exacerbate PMDD symptoms.
Lifestyle modifications
- Stress management - Incorporate daily practices such as mindfulness meditation, breathwork or yoga to increase parasympathetic activity and reduce histamine release.
- Sleep hygiene - Establish consistent sleep-wake cycles, ensure natural light exposure upon waking and reduce evening screen exposure to improve sleep quality. Consider using a herbal sleep product, such as Kiwiherb Sound Asleep, for a short period of time to shift the sleep pattern.
- Adjust physical activity - Continue regular movement but reduce intensity during the luteal phase, favouring walking, Pilates or yoga to avoid excessive cortisol production.
- Reduce environmental triggers - Minimise exposure to synthetic fragrances, harsh cleaning products, and allergens (mould, dust, pet dander) that may exacerbate histamine responses.
Supplements
- Magnesium glycinate - Supports nervous system regulation, reduces anxiety and improves sleep.
- Vitamin B6 - Supports neurotransmitter production and progesterone metabolism, which are conducive to PMDD symptom management.
- Quercetin - Functions as a mast cell stabiliser, controlling histamine release and reducing inflammation.
Follow up:
After four weeks, the client reported moderate improvements in mood stability, with reduced severity of irritability and anxiety during the menstrual phase. While symptoms, were still present, they were less disruptive to daily functioning.
Sleep showed gradual improvement, with fewer night-time awakenings and a modest sense of restfulness, though variability remained across the cycle. Headaches and flushing episodes decreased in frequency, and she reported fewer reactions to previously triggering foods.
Dietary changes were partially implemented. She reduced alcohol intake to three glasses weekly and made efforts to limit high-histamine foods, though adherence depended on social factors. Stress management practices were implemented consistently, including weekly yoga sessions at home.
Digestive symptoms improved, with less bloating and more regular bowel movements.
She was advised to continue symptom tracking over the next 2-3 cycles and was referred to her GP for further evaluation and potential formal diagnosis of PMDD. Continuation of the current protocol for three months was recommended prior to reassessment.