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.
Trauma or injury is a common cause of foot pain. Even everyday situations, such as overuse or poorly fitting shoes can lead to temporary, acute pain in the feet. Foot pain can be described as sharp, stabbing, dull or throbbing. It can also feel like a tingling or burning sensation (paresthesia), which is common in conditions such as diabetes that can damage the peripheral nerves (peripheral neuropathy).