| 1. | Children's PKU Network | | | Organisation offering education and direct assistance. Includes details of projects, plus links to food suppliers. www.pkunetwork.org |
| 2. | National PKU News | | | Organisation providing information and news to families and professionals. Includes general information about the condition, dietary advice, research, personal stories and support. pkunews.org |
| 5. | Phenylketonuria | | | Definition, causes, symptoms and treatments. www.medhelp.org |
| 6. | PKU-Info.org | | | Provides general information, plus links to organisations, suppliers and mailing lists. Also includes a forum. [English and German] www.pku-info.org |
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