When in 1968 Finland was faced with the problem of hypertension among the population, especially in the northern part, the Government has developed and funded a program to improve the health of the population "North Karelia».
The result of this program, which lasted more than 25 years, has been the decline in mortality from cardiovascular disease seven times, and the average life expectancy increased by 13 years (from 68 to 81 years).
One of the important factors, which influence on the result, was a reduction in salt intake from 9g to 16g per day per person. Also since 1972 in Finland, in the framework of the programme, to replace common salt in food to the population was offered the saline mixture with the addition of 15% Potassium (30% potassium salts). It was possible, without changing its taste habits, only by replacing ordinary salt on salt with potassium, to reduce by 30% the consumption of excess sodium in the home. After such a positive experience in Finland this path taken by many countries of the world.