The PeriFlow Blog

Perimenopause, explained.

Evidence-based articles on hormones, nutrition, fasting, and movement — written for women 40–55 who want to understand what's happening in their body and what actually helps.

Nutrition 3 June 2026

Anti-Inflammatory Foods for Perimenopause: The List and the Science

Oestrogen is a natural anti-inflammatory. When it declines, symptoms spike. Here are the foods that fill the gap — and when in your cycle they matter most.

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Fasting 1 June 2026

Intermittent Fasting and Perimenopause: What Works, What Doesn't, and When to Stop

Intermittent fasting in perimenopause isn't one-size-fits-all. Learn when it helps, when it backfires, and how your cycle phase changes everything.

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Nutrition 1 June 2026

Perimenopause Weight Gain: Why It Happens and What Actually Works

Understand why perimenopause causes weight gain — especially belly fat — and discover evidence-based strategies that actually work with your hormones.

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Hormones & Body 27 May 2026

Perimenopause Brain Fog: The Hormonal Link and What Actually Helps

Perimenopause brain fog is real — and it has a hormonal cause. Learn what's driving the cognitive changes and what evidence suggests actually helps.

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Intermittent Fasting 21 May 2026

The 12:12 Fasting Window: The Safest Starting Point for Perimenopausal Women

12:12 intermittent fasting — a 12-hour overnight fast — works with perimenopausal hormones rather than against them. Here's the science and how to start.

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Intermittent Fasting 18 May 2026

Why 16:8 Fasting Can Backfire in the Luteal Phase — And What To Do Instead

Find out why 16:8 intermittent fasting can increase cortisol, worsen PMS, and stall results during the luteal phase — and what to do instead.

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Nutrition 18 May 2026

Magnesium and Perimenopause: The Mineral Most Women Aren't Getting Enough Of

Magnesium deficiency is widespread in perimenopause and linked to poor sleep, mood swings, muscle cramps, and worse hot flashes. Here's what the science says.

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Nutrition 18 May 2026

Protein in Perimenopause: How Much You Actually Need — and Why It Matters More Than You Think

Protein needs shift dramatically in perimenopause. Learn how much you actually need, why it matters for muscle, metabolism, and mood — and how to get it.

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Weight & Metabolism 7 May 2026

Visceral Fat and Estrogen: Why Belly Fat Increases in Perimenopause

Perimenopause belly fat isn't about willpower. Here's the hormonal science behind visceral fat gain after 40 — and what the evidence actually suggests helps.

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Weight & Metabolism 7 May 2026

How Your Metabolism Changes in Perimenopause — and How to Work With It

Your metabolism isn't broken — it's adapting. Learn the hormonal science behind metabolic changes in perimenopause and what actually helps your body thrive.

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