I have been wondering how many other unhappy, 'hormonal' teenagers there are out there who might be helped by the diet. Amines (and might also be salicylates) really affect my 14 year old's mental health and on the diet she is so much happier.

My daughter has always been a very anxious child and teenager. In recent years she has been a glass-half-empty girl, where any outing or party was 'okay' but there was always a negative slant on it. She was always too uptight to sleep in and would have sessions where she would cry for no reason, which I put down to hormones. Essentially, she is a lovely, loving child and we are very close, but she was wearing me out.

Since the diet, she and her sister have barely exchanged a cross word, she takes life in her stride and comes home positive about her experiences. She has a busy sporting schedule but rather than complaining about getting up early and being tired, she gets on with it and has improved greatly since the diet. She sleeps in on the mornings she doesn't go to training, trusting that I will wake her in time to go to school. She will never be a super-confident girl and she still has occasional times of grumpiness, but she is now a happy child. The funny thing is that she couldn't see the change in herself, even though it was so obvious to my older daughter and me. But she did see the effect when she once ate some rubbish they created in Food Tech at school (chocolate, coconut and m&m balls!) and now chooses not to eat those foods as far as it is possible.

Thanks so much for all your work in this area. I found your book in a waiting room and haven't looked back. - by email