Public-health experts say new research has revealed alarming levels of salt in supermarket cooking sauces.While some brands have lowered their salt levels in recent years, others were found to contain up to 90 times more by comparison.  - Public-health experts say new research has revealed alarming levels of salt in supermarket cooking sauces.While some brands have lowered their salt levels in recent years, others were found to contain up to 90 times more by comparison.