In Iranian adults, eating more salt is linked to a higher chance of heart problems over time — every extra 1,000 mg of sodium a day is tied to a much higher risk, so cutting back on salt might help protect the heart.

Eating more salt might increase your chances of heart problems as you get older — one big analysis found people who eat a lot of salt have about a 19% higher risk than those who eat less.

The more salt you eat, the higher your risk of heart disease — and this keeps going up steadily, with no safe lower limit or point where it stops getting worse.

Eating more salt is linked to heart disease risk — and this link stays about the same no matter how old you are, whether you're a man or woman, how long studies look at people, or how good the studies are.

For adults between 30 and 84, having too much sodium compared to potassium in your diet might nearly double your chances of having a heart problem — it’s not just about salt or potassium alone, but the balance between them.

If Iranian adults eat a diet where they get more sodium than potassium—specifically, a ratio over 1.26—they might be more than twice as likely to get heart disease over time.