A tar-gzipped version is available here:
svn checkout http://code.nkinka.de/svnroot/nutridb/branches/production/
Installation: First take a look at the README file that comes with
the source. To get a site up and running should be as simple as making a Subversion
checkout or unpacking one of the tar-gzipped files into your web root, copy
config.php-dist to config.php, edit config.php with some values suitable for your
environment, unzip the database and install it with something like
mysql -u root -p < nutridb-database.sql.