Sodium is known to raise blood pressure (and sometimes greatly), so doctors generally recommend limiting it. Check with your healthcare professional before you up your intake -- if you consume an amount that's not good for you, it can lead to heart failure (especially if you're older).
Other possible causes for foot, leg, and ankle swelling include certain medical conditions or body changes, such as: Natural hormonal changes: Fluctuating levels of estrogen and progesterone can cause reduced circulation in the legs, resulting in swelling.
Being overweight or obese -An injury or surgery to the leg, ankle or foot -A blood ... for long periods of time, often lead to some swelling in the feet and ankles ... Some medications may cause your legs to swell, including some antidepressants, steroids, blood pressure medications ... When you can, sit with your feet up and occasionally rotate your feet at the ankles ... Although there's little research on the use of water pressure for foot and ankle swelling ...