Nutritionist and researcher working at the intersection of gut health, hormones, and women’s long-term health.

With a Master's of Science in Nutrition and ongoing doctoral research, my work centres on how the gut influences hormones, energy, and long-term health. I study how the microbiome shapes estrogen metabolism, including patterns relevant to breast cancer risk, and how those same mechanisms lead to poor performance due to irregular cycles, PMS, fatigue, brain fog, stubborn weight gain, PCOS, endometriosis, PMDD, and hormonal volatility.

For more than a decade, I have built programs and clinical systems that translate evidence into measurable competitive advantage. I work at the level of addressing foundational drivers rather than surface symptoms, for sustained performance excellence..

I work with ambitious leaders and high performers who are experiencing barriers to operating at their best. They want consistent energy, sharper focus, reduced inflammation and bloating, improved body composition, faster recovery, and a body that performs on pace with their ambition.

My work identifies and corrects the underlying constraints limiting growth so that income, performance, and physical capacity expand beyond previous ceilings.

Originally from Ontario, Canada, I am now based in London, working with clients internationally.

Sarah Brandow, MSc Nutrition, London-based gut health researcher
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