Dr Clayton sets out his views on optimum nutrition at www.healthdefence.com

Dr Clayton has advised on the formulation of a supplement called NutriShield www.nutrishield.com which supplies the range and levels of nutrients that he believes will optimally support the body against the threat of most degenerative diseases.

The publishers of Health Defence and Avoiding Pharmageddon are www.acceleratedlearning.com .They also distribute After Atkins.

Accelerated Learning also publishes innovative books and home-study courses on learning and thinking skills, foreign languages and child development.