• They have a residue of 0.2 gram or less per litre (the established re sidue is the quantity of mineral salts dissolved in 1 litre of water).
They contain various mineral salts: sodium, calcium, magnesium, chlor ine.
    They are used as a drink;
    they cure calculosis of the urinary tracts, chronic inflammations of the urinary tracts, and pyorrhoea gout.
    They are not recommended in the treatment of chronic nephritis, hypertension, kidney failure or coronary decompensation.

Spa centres featuring oligomineral waters.
    Bagni Contursi - Bognanco - Canistro - Comano - Fiuggi - Fonte Bracca - Fonte Ceciliana - Garessio - Lurisia - Montesano sulla Marcellana - Nocera Umbra - Pejo - Pracchia - Recoaro - Rocca - Roveta - San Carlo - Santuario di Graglia - Stravignano