Ashwagandha is everywhere in perimenopause circles. But what does the clinical evidence actually say? Cathy reads the primary RCTs — including a 2021 double-blind trial showing significant reductions in perimenopausal symptom scores, increased estradiol, and decreased FSH — and breaks down the cortisol science, the sleep data, and the safety concerns nobody in the supplement industry wants to talk about. If you're considering it, this is where to start.

B vitamins — especially B12, B6, and folate — become harder to absorb and easier to deplete during perimenopause. The problem: deficiency symptoms (fatigue, brain fog, low mood, tingling) look almost identical to hormonal symptoms. Meanwhile, declining estrogen raises homocysteine, a compound linked to cardiovascular disease, cognitive decline, and bone fracture risk. B vitamins are your primary tool for controlling it. Here's what the research shows, what to test, and what t

New 2025 research suggests creatine may help support brain function, reaction time, mood, muscle preservation, and cognitive energy during perimenopause. Once seen as a bodybuilding supplement, creatine is now emerging as one of the most evidence-backed tools for women navigating hormonal change, brain fog, fatigue, and muscle loss after 40.

Zinc is involved in over 300 enzymatic reactions — including ones that govern thyroid hormones, hair follicles, immunity, and sex hormone metabolism. During perimenopause, heavy periods, chronic stress, and gut changes quietly deplete it. The problem? Its symptoms look almost identical to perimenopause itself. Here's why deficiency becomes more likely during the hormonal transition, and how to test before assuming everything is oestrogen-related.

Magnesium deficiency in perimenopause is more common than you think—and it could be worsening your anxiety, sleep issues, hot flashes, and fatigue. As estrogen declines, your body loses more magnesium, increasing your need. This science-backed guide explains how low magnesium impacts your symptoms, the best forms to take, and how to restore optimal levels for better mood, sleep, and hormonal balance.

I'm 43, perimenopausal & skeptical—until brain fog & 3am waking changed my mind. My honest, tested supplement guide for hormonal balance & mental health.

43-year-old entrepreneur Cathy shares what actually worked for her perimenopause symptoms — brain fog, 3am waking, weight gain, and mood swings. Real supplements, real protocol, cited research. Updated March 2026 with new additions: lion's mane, estrobolome research, and ashwagandha cycling notes. No fluff. Just what helped.