Access

Published online 28 May 2008 | Nature | doi:10.1038/453570a

Genetic testing for everyone

Private companies are starting to test customers' DNA for gene variants linked to an increased risk of conditions such as obesity or Alzheimer's disease. Helen Pearson looks at whether knowledge really is power when it comes to disease avoidance.

Comments

Reader comments are usually moderated after posting. If you find something offensive or inappropriate, you can speed this process by clicking 'Report this comment' (or, if that doesn't work for you, email redesign@nature.com). For more controversial topics, we reserve the right to moderate before comments are published.