盐吃多了,人会得很多致命的疾病,如心肌梗塞、中风和其他心血管疾病。即使每天少吃1g盐也能降低患病概率,最重要的是能减少医疗开支,节省不少银子(现在美元贬值,估计节省的数目更大)。【Projected effect of dietary salt reductions on future cardiovascular disease. N Eng J Med . 2010, 362(7):590-599.】 当然,植物也不喜欢吃盐,如钠离子对小麦( Triticum aestivum )的损伤。【NaCl对小麦光合功能的伤害主要是由离子效应造成的. 植物学通报 . 2000, 17(4):360-365.】 氯离子对蚕豆( Vicia faba )的损害。【High concentrations of Na + and Cl - ions in soil solution have simultaneous detrimental effects on growth of faba bean under salinity stress. Journal of Experimental Botany . 2010, 61(15):4449-4459.】(全文见: http://jxb.oxfordjournals.org/cgi/content/full/erq251v1?view=longpmid=20713463 ) 到底是钠离子(Na + )还是氯离子(Cl - )对植物的伤害更大? 更多阅读: Big Benefits Are Seen From Eating Less Salt Salt, potassium and the control of blood pressure