The levels of various blood chemicals like electrolytes, hormones, and kidney markers don't change based on how much sodium someone excretes in their urine.

Sodium excretion levels don't affect blood pressure, heart rate, or how much blood the heart pumps when lying down.

People who pee out more salt tend to have higher blood pressure, and their blood pressure tends to rise faster as they get older—but in whole populations, the average blood pressure and how many people have high blood pressure don’t seem to change based on salt levels.

People who excrete more sodium in their urine tend to have more fluid outside their cells.

For people who already have heart disease, eating just the right amount of salt — not too little and not too much — seems to be linked to the lowest chance of heart problems or dying from any cause. Too little or too much salt might actually be riskier.

People who pee out more salt tend to have higher blood pressure, and this pattern shows up in lots of different groups of people around the world.