Your gut microbiome does far more than digest food — it's actively managing your oestrogen through a community of bacteria called the estrobolome. In perimenopause, declining hormones disrupt this microbial ecosystem, which then worsens hormone signalling in return. The result? A vicious cycle that may be driving your bloating, brain fog, hot flashes, mood crashes and weight gain harder than you realise. Here's the science — and what the evidence says actually helps.

At 43, running a business while navigating perimenopause, I watched my gut health fall apart — the bloating, the 3am waking, the mood crashes, the constipation-then-diarrhoea cycle that nobody warned me about. What I discovered changed everything: the connection between declining oestrogen, the gut microbiome, and almost every symptom I was experiencing. This is my honest, research-backed account of how I used probiotics, fermented foods, and targeted dietary changes to rebui