Lyndel Costain BSc RD

Registered Dietitian

Lyndel Costain has over 20 years experience as a registered dietitian and nutritionist, working with the NHS and British Dietetic Association (BDA) specialising in weight management and eating disorders.

After her role as chairman of the British Dietetic Association Public Relations Committee in 2005, Lyndel has been a regular contributor and consultant to WLR. She promotes her passion for good food and healthy lifestyle through clinical work and nutrition consultancy, alongside writing, radio, and TV (including the BBC's hit Diet Trials series).

WLR Guest Dietitian, Lyndel Costain Bsc RD
Dietitian, Lyndel Costain Bsc RD

Lyndel's published clinical research 'Helping Individuals to Help Themselves', delves into how individuals can be helped to achieve long-term weight control by supporting them to make healthy, sustainable lifestyle changes.

Her work has been referenced in globally recognised medical journals including the International Journal of Environmental Research and Public Health, the Journal of the American Academy of Nurse Practitioners, and the Journal of Clinical Nursing.



  • Gluten-Free Food: Written in association with Coeliac UK, this highly rated book contains recipes and practical advice to help those managing coeliac disease. Details on Amazon
  • The Body Clock Diet: Including calorie controlled meal plans and GI (glycemic index) information to help manage appetite and weight. This 5* title can be found on Amazon
  • Diet Trials: How to Succeed at Dieting: The book to accompany the BBC's hit series, Diet Trials, Lyndel looks at popular diets pro's and con's, and gives expert strategies for weight loss and healthy eating. Details on Amazon
  • The Calorie, Carb and Fat Bible: Lyndel's expertise gives readers easy to understand strategies and know-how to help them lose weight and keep it off. Details in wlr shop


Some of Lyndel's work on wlr:


Why Diet Plans Help Weight Loss

It's not just types of foods or even simply calorie content. Lyndel Costain RD uncovers the benefits structured meal plans contribute to successful weight loss

Quiz - Is Your Mind Ready to Lose Weight?

The right mindset is crucial when you want to lose weight. This quiz by dietitian Lyndel Costain will reveal how ready you are, and help you get mentally prepared and motivated.

Dietitian’s Top 30 Diet Tips to Help You Lose Weight

Having helped many people lose weight over the years, dietitian Lyndel Costain’s tips cover all bases for success, emotional and practical, here’s her Top 30

Can Ready Meals Help You Lose Weight?

New research shows that ready meals can aid weight loss, especially for men.

Crash Diets Under The Spotlight

Crash diets – that ever popular way to drop some pounds – fast. And a dieting fashion that seems set to remain as shrinking celebrities promote the message that ‘thin is the new black’. But will do crash diets really work, or do they do more harm than good?

The Intermittent Fasting diet - is the 5:2 diet the new way to get slim and healthy?

Intermittent fasting for weight loss is the latest diet claiming to get results. We look at what is intermittent fasting and how fasting to lose weight works.


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