Thirty-nine healthy , normotensive volunteers -LSB- @ women and @ men ; mean SD age : @ @ y ; BMI ( in kg/m ( @ ) ) : @ @ -RSB- received a meal with @ mmol K and @ mmol Na ( low-potassium , high-sodium meal ( LKHN ) -RSB- , a meal with @ mmol K and @ mmol Na -LSB- high-potassium , high-sodium meal ( HKHN ) -RSB- , and a control meal with @ mmol K and @ mmol Na ( low-potassium , low-sodium meal ) on @ separate occasions in a randomized crossover trial .