One of main causes for our high salt intake, found by Professor Thandi Puoane from the University of the Western Cape, is when poor people have little else to eat other than pap, which they flavour with salt.
Read: Too much salt can damage your health
Salt contains sodium and the current sodium intake by South Africans was seven grams per day, while the World Health Organisation guidelines recommended an intake of four to six grams per day, according to the Prospective Urban Rural Epidemiology (Pure) study.
Read: How much sodium is too much?
The SA Strategic Plan for the Prevention and Control of Non-Communicable Diseases recommended that the entire population lower its sodium intake to below five grams per day by 2020.
South Africans and salt study
The Pure study, which was led by investigators from the Population Health Research Institute, McMaster University, and Hamilton Health Sciences in Canada, followed more than 100 000 people for almost four years.
The results of the study were put together by hundreds of investigators from 18 countries.
Professor Thandi Puoane, from the University of the Western Cape, was one of two South African researchers involved. The researchers were responsible for the urban site in Langa, Cape Town, and the rural site in Mount Frere, Eastern Cape.
"My research has shown that poor people often say 'we eat porridge and salt because we have nothing else to eat'," she said in a statement.
Read: 10 salty food culprits
"The basic fact is that these people may consume too much salt, which is dangerous as they do not eat enough fruit and vegetables which are high in potassium to balance the salt consumed."
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