Frontiers Apr 2 2026 Salt has been used as seasoning and food preservative for thousands of years, but having too much of it can lead to various diseases, including high blood pressure, cardiovascular diseases, and kidney disease. Salt overconsumption is also known to accelerate cognitive decline. To avoid increased likelihood of developing such diseases due to salt overconsumption, the WHO recommends adults consume no more than five grams of salt per day. Salt added to food after preparation