Meet our dietitian

Scarlett Gray

Accredited Practising Dietitian. Sports dietitian to elite NRL athletes. Credentialed eating disorder clinician. And the expert eye behind Kollo Health's evidence-led guides.

Every Kollo guide Scarlett writes or reviews is checked against current nutrition science - so what you read reflects the evidence, not the hype.

APD200526 Registered with Dietitians Australia
3 seasons Club dietitian, Newcastle Knights NRL & NRLW
First Class Honours, Nutrition & Dietetics
38+ Kollo guides written & reviewed

Why a dietitian, not a nutritionist

Anyone can call themselves a nutritionist - the title is unprotected. Dietitian is different: it is a regulated title that can only be used by university-qualified, accredited practitioners.

Scarlett is an Accredited Practising Dietitian with Dietitians Australia (registration APD200526), an Accredited Sports Dietitian with Sports Dietitians Australia, and a Credentialed Eating Disorder Clinician with ANZAED.

✓ Verify it yourself: every credential on this page can be checked with its registering body - Scarlett is listed in the Dietitians Australia register.

Scarlett's journey

University
Graduates with First Class Honours in Nutrition and Dietetics from the University of Newcastle, then qualifies as an Accredited Practising Dietitian with Dietitians Australia.
Elite sport
Spends three seasons as club dietitian for the Newcastle Knights, supporting the high-performance programme across NRL, NRLW and pathways squads - and builds fuelling plans for marathon runners, triathletes and rugby league players.
Clinic
Founds Redefining Nutrition, her clinical practice spanning women's health, gut health, sports performance and disordered eating - with specialist work in PCOS, endometriosis and IBS backed by Monash University Low FODMAP training.
Kollo
Becomes Kollo Health's reviewing dietitian - writing and reviewing the evidence-led guides on collagen, menopause, joint health, sports nutrition and gut health.
"Where the evidence for an ingredient is strong, I'll say so. Where it's early or mixed, I'll say that too. That's the standard every Kollo guide is held to." Scarlett Gray, APD - Reviewing Dietitian, Kollo Health

How Scarlett works with Kollo

Scarlett writes and reviews Kollo Health's guides across the topics our customers ask about most. Articles she has reviewed carry a dated "Reviewed by" note linking back to this page - so you always know when an expert last checked what you are reading.

Her sports background matters here: elite athletes cannot afford supplements that do not work, and that same standard of evidence applies to every Kollo guide. Her clinical work in women's health, menopause and gut health maps directly onto the questions Kollo customers ask every day.

Start with Scarlett's most-read guides

How much collagen per day? The evidence on dosage - and why 10,000mg is the clinically studied amount. Collagen and medications What to know about interactions before you start supplementing. The complete guide to liquid marine collagen Everything in one place - what it is, what it does, and what the studies show. Collagen types 1, 2 and 3 explained Which type does what - and which one your goal actually needs.

Read the guides

Evidence-led articles on collagen, menopause, joints and gut health - written and reviewed by Scarlett.

Browse all guides

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