About Sarah Eglin: The Engineer of Your Health

Expertise Forged in Data, Driven by Health

Sarah Eglin Founder and Nutritional Therapy Specialis.  Holistic Health and Lifestyle Medicine Practitioner holding a berry smoothie, wearing a striped green and white top.

Sarah Eglin combines the analytical rigour of a Chartered Accountant (ACA) with extensive, evidence-based Specialist Nutritional Therapy. This unique blend allows Eglin Health to move decisively beyond generic dietary trends and fragmented advice.

Instead, we apply a structured, systems-based approach to investigate and resolve complex issues—ranging from Chronic Health Conditions, including Integrative Oncology, to the specific demands of Sports Performance Nutrition. We offer clarity and lasting solutions where conventional methods have often failed to provide answers, ensuring every client benefits from a methodology that is both scientifically grounded and meticulously applied.

The Eglin Methodology: Finding The Root Cause

Eglin Health operates on the principle that the body is an interconnected system. We do not focus solely on symptoms; we investigate the underlying factors that contribute to imbalance. Our comprehensive methodology is built around two key frameworks

1) The 4 Key Systems: Our Investigative Framework

Every programme begins with a rigorous functional analysis of these four major regulatory networks. We examine the complex interplay between them to identify the areas of root cause dysfunction:

  • The Digestive System

    The Nutrient Engine & Microbiome Balance.

  • The Immune System

    Inflammation Management & Defense Network.

  • The Nervous System

    Stress Response & Mind-Body Communication.

  • The Endocrine System

    Master Regulator of Metabolism and Mood.

2) The 6 Pillars of Health: The Foundation of Every Programme

Our clinical strategy is implemented through personalised lifestyle changes built from the ground up, utilising these six accessible and foundational lifestyle pillars:

  • Basket of colourful fruit including kiwi, grapes, mango and pineapple.

    Optimal Nutrition

    Appropriate and sufficient nutrient-dense whole foods.

  • A man exercising by deadlifting a heavily weighted barbell in the gym..

    Physical Activity

    Balanced, appropriate movement levels (prioritising recovery).

  • Woman sleeping with a pillow over her face, holding a pair of glasses.

    Restoration

    Plentiful, high-quality, and restful sleep.

  • Women holding a meditation sound bowl during a meditation session.

    Mental & Emotional Wellbeing

    Emotional processing and mindset strategies to build lasting stress resilience and improve health outcomes.

  • Four people looking into the distance with their arms around each others back symbolising community and social support.

    Connection

    Cultivating healthful, positive relationships and social support.

  • Hands cupped together, full of soil & covered in soil.  Symbolising organic, healthy soil, an indicator of a good environment.

    Environment

    Addressing routine exposure to environmental toxins and supporting the body's detoxifiction pathways.

Specialist Clinical Hubs

While the Eglin Methodology is universal, Sarah provides specialist, evidence-based guidance across several key clinical areas. Explore how we apply our systems-based approach to your specific needs:

Qualifications & Credentials

Sarah Eglin brings a unique blend of scientific education, professional discipline, and specialised training to Eglin Health, ensuring every client receives structured, evidence-based care focused on profound results.

  • Registered Nutritional Therapist (mBANT) & CNHC Registered: Fully qualified and regulated practitioner providing safe, evidence-based guidance.

  • Specialist Cancer Training: Holds BANT-recognised Post-Graduate Training in Nutritional Support for those affected by Cancer.

  • Disciplined Professional Background: Associate Chartered Accountant (ACA), ensuring programme design is rigorous, structured, and results-focused—a philosophy forged through years as a highly competitive endurance athlete.

  • Mind-Body Integration: Certified KRI Kundalini Yoga Teacher, allowing for the integration of vital stress management, nervous system regulation, and connection protocols into bespoke health programmes.

  • Academic Qualification: BEng (honours) Electronic Engineering

In Practice: My technical background and clinical training inform the systems-based approach I use with all clients. You can see this methodology in action in my recent feature blog: How I balanced performance and systemic health for Ironman Barcelona 2025.

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 About Sarah Eglin: The Clinical Engineer of Your Health