Welcome To 121dietitian
121 Dietitian
Your Nutrition Experts
Achieve your wellness goals with personalized guidance, expert support, and sustainable habits for a healthier, happier you.
30+ Years of experience
30+ Years of experience
About Us
Gillian Killiner - About 121 Dietitian
UK leading Dietitian Gillian Killiner provides tailored nutritional advice and services to clients and the corporate sector. In 2008, after 12 years in the NHS as a specialist Dietitian, Gillian realised there was a need to offer patients detailed bespoke dietary advice, and offer businesses a way to improve staff health and well-being. 121 Dietitian was born.
- Hormonal imbalances
- GUT health
- Disordered eating
- Resistant weight loss
- Weight gain
- Sports nutrition
Gut Health & Weight Loss
Our aim is to help you fix your gut symptoms so you can go on to achieve your weight loss goals while also improving your overall health and wellbeing. If it is weight gain you need we do this too...
Weight loss for life
Our expert dietitians use the latest research to help you achieve your weight loss goals safely and effectively, whilst also improving your overall health and well-being through tailored dietary advice...
Cancer Nutrition
Our highly skilled Specialist Dietitian will carefully assess your dietary requirements, address any concerns, and develop a tailored plan to support your health....
Fixing Metabolism
A deep dive program designed to address fatigue, feeling cold, poor sleep, low mood, low energy, and low metabolic symptoms. It also tackles your ongoing weight concerns.
Taster Plus
A total of five hours of dedicated Dietetic time, we'll work closely with you to develop a plan that addresses your unique needs and goals for prevention or optimisation....
Diabetes nutrition
Tailored to meet your individual needs, extending beyond the management of pre or type 2 diabetes. This program involves checking bloods, provding continuous dietary support to optimise your health outcomes....
Sports Performance
You will receive five hours of dietetic time with one of our team of experts. Our specialist will provide tailored nutritional guidance to enhance your athletic performance and overall well-being..
Gut Health
We offer a wide range of programs to ensure the resolution of your unpleasant symptoms check out our new GUT COURSE!! All optimize your overall gut health and wellbeing. Reflux, Diverticular, IBS, IBD, SIBO....
Introduction Gut Health
If you’ve been dealing with stubborn gut issues like, wind, bloating, constipation, diarrhoea, pain and fatigue, even after tests and doctors’ visits, our new 121Dietitian Gut Health Program is here to help.
This isn’t just another quick fix—it’s a proven, expert-led solution. Through self-paced modules, video tutorials, and personalised guidance, you’ll regain control over your digestive health in just 10 days. See more details on our GUT HEALTH COURSE page and scroll to subscribe for the Goal Setting Freebie.
Invest in Your Health Series
We are excited to announce our new “Invest in Your Health Series” – a range of online programs designed to support you in taking control of your health.
These programs offer expert guidance on key areas like gut health, blood sugar management, and overall wellness, helping you achieve sustainable results.
Watch the accompanying video where Gillian explains more about the series and how these programs can transform your health journey.
Our Partners
121 Dietitian is proud to have been published in
Suffer from IBS?
We Can Change Your Life!
Up to 95% success rate
Get in touch to learn how we can support you with the new low FODMAPs diet
30+ Years Experience
Helped 1000’s of clients
One to one or online
Testimonials
See Reviews From Our Clients
Dorothy Haveron
Veisha Evans
