Meet Dr Xandria Williams Naturopath, Nutritional Biochemist,
Herbalist and Psychotherapist

Dr Williams brings her naturopathic training, a biochemical understanding of nutrition and human health, herbal medicine and a deep respect for the profound concepts of psychotherapy into her resources as she helps clients with a variety of health problems.

Dr Williams has lectured in biochemistry, nutrition and many relate topics at several naturopathic, nutritional, osteopathic and chiropractic colleges in both Sydney and London. She has designed and run an extensive number of seminars.

Xtra Health Ltd was started initially when we recognised the need to help clients. Dr Williams recommends a number of supplements and remedies. They are not always easy to source, nor is it easy to know which brands or which specific products to choose. For this reason we have made her chosen products available through Xtra Health Ltd, our retail outlet.

The home
of Naturopathic and Holistic Health Care - The Practice

Our approach is based on restoring homoeostasis, or returning people to optimum health, without doing so in a harmful way or by the use of toxins that are foreign to the body.


“First do no harm” is in fact a misquote, a short and casual form of the original Hippocratic oath, to the effect that assistants should respect their masters, share medical knowledge, help patients, avoid harming them medically or personally, seek help from other physicians when necessary and keep patient information confidential.


We respect scientific learning and understanding. We adhere to the commitment that a theory, if once proven to be wrong, should be set aside, and further research should be undertaken to better understand the subject more deeply and correctly.

Sharing knowledge is important at many levels. We aim to teach and educate our clients as part of an aid to their recovery, to teach students to help further advance their learning and careers and to share knowledge with our colleagues so that we all can learn, for the benefit and pleasure of all.

Client Testimonials

Dear Dr Williams

I just wanted to say big Thank you for inviting me to the open house on Friday, it was very interesting and inspiring evening meeting other clients, listening to their stories and learning more about nutrition.


(email on file)

Hello Xandria,

Trust you are well in your body, soul and spirit. I am a South African and when I was diagnosed with cancer, friends of mine, from London, send me your book ” vital signs for cancer”.

Thank you, it saved my life! Thanks again for all your hard work!


Thank you so much for the skype conversation earlier, which made me feel so much better and excited about the future. I haven’t been fearful, but the last chemo experience has made me feel in need of some reassurance. I very much appreciate all your efforts!!


(email on file)

consulation room group image
consulation room group image

Open House

Friday evenings (free)

For 20 years in Sydney, these discussion groups were held weekly on Monday or Wednesday evenings, and the focus was on nutrition or psychotherapy, respectively. For the last 20 years in London, they have been held Friday evening and based on cancer support.


They have provided clients with a place they can come, share their stories, ask questions, and meet up with other people having similar experiences.


Recently students have wanted to come too, to learn more about cancer support. They are now a fruitful combination of the two, varying each week depending on the compositing of the group and the questions that are asked.


With the start of the pandemic and the various levels of lockdowns, Dr Williams realised  how isolated and cut off many of her clients would feel.  She therefore started an intensive program of Zoom meetings.  Initially these were conducted every morning for an hour at 9.00 am and every evening at 6.00 pm, also for an hour.  As people have learnt to reshape their lives, and to use the internet in place of personal contacts, doing a lot on social media, the need for these has decreased somewhat.


These  Open Zoom discussions, go under the casual title of ‘Coffee Club’ meetings and are still held several times a week, they are open to anyone interested in our approach to both cancer and the pandemic and to degenerative diseases in general.


CONTACT US TODAY for further information, on 020-7824-8153

Books by Dr Xandria Williams

Liver Detox Plan
From Stress to Success- 10 steps to a relaxed and happy life by Xandria Williams
The Four Temperaments by Dr Xandria Williams
Overcoming Candida- The Ultimate Cookery Guide
Beating the Bluesstrong Guide to Avoiding and Lifting Depression by Dr Xandria Williams