When I read this book through, I felt a great feeling of disquiet. It is a colourful and attractive looking volume and I have absolutely no problems with the recipe section. Some of these look delicious and simple, and I might even try them myself as they appear quick, easy and with a reasonable balance of ingredients.
Elizabeth Peyton-Jones, however, is trying to offer much more, for the title is "Eat Yourself Young" and this is a quite a claim. It is true that a balanced diet can assist in maintaining good health and there is reasonable evidence based research to suggest that eating your greens and fruit will assist greatly in this. The author, however, states much more - and does so without quoting the studies to back up her hypotheses. The fact that there is no bibliography so that we can read further and decide matters for ourselves is also concerning.
She suggests that the reader changes their diet to combat the five anti-ageing processes, namely, eliminative slowdown, inflammation, oxidation, acidification and hormonal imbalance. This involves an evaluation of current symptoms, a detox diet and the EYY eating plan. Apparently, you will feel better by following this - well, it does rather depend, I suspect, on how you were before, as you certainly will be taking your fruit and veg in copious quantities. Ms Peyton-Jones also makes some quite unequivocal statements to back up her dietary ideas and these worry me hugely.
When I received this book, I scanned it and then consulted a number of friends who work in a variety of scientific fields to assist in evaluating the text. We looked at, for example, oxidation. Yes, they said, the facts are there but there is an overplay when it comes to the effect of oxidative stress on DNA. There were also problems when it came to looking at sugar and its effect on blood glucose - yes, it does raise it but your body has a process to regulate this and, in non-diabetics, it does it most effectively.
There is also a recommendation concerning eating beetroot to lower blood pressure. This is based on a very small study, I think, and I did locate the paper. It suggested a hypothesis but this should not be taken as pure fact and inferences drawn. It is also worth saying that the study was done on normotensive subjects.
In summary, the problem with the rationale behind some of the statements in this book is that they simply are not explained sufficiently or with care. Two and two simply do not make five! Science tends to involve trials that suggest correlations but people need to be careful before regurgitating the results in the form of directives - things just do not work that way as the real story can be quite complex in this world.
I understand that the launch of this volume was covered by Tatler Magazine and there is some celebrity endorsement on the book cover. This does not, however, lend credence to the content and it certainly does not add to the believability of the statement that constipation gives you eye bags and forehead wrinkles!
...and finally. Ms Peyton-Jones suggests that if you are worried about the quality of your tap water, you should contact your local council to test it. Please do not. Your steps should be directed towards your water company as they took over this role long ago.