Some Japanese companies are developing high-tech products that can help people reduce their salt consumption.

One product alters the chemistry of food. This bowl and spoon generate a very low level of electricity that manipulates food's sodium ions, making it taste saltier than it actually is.

It was developed by Kirin Holdings and Meiji University. Researchers are testing the product, hoping to launch it next year.

Food maker Ajinomoto has developed a line of soup-stock powders. They contain up to 60 percent less salt than conventional products. Yet their special formulation gives the stock a full salty flavor.

The product is marketed to households. But Ajinomoto is also trying to sell it to hospitals and care facilities, where many patients and residents need to curb their salt intake.

Other companies are making similar efforts in response to growing demand for healthier foods.

The average sodium intake for people in Japan exceeds the government's target level. Excessive consumption can cause high blood pressure, a major cause of heart disease and stroke.