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.
What causes swollen feet and legs? Your feet and legs swell when fluid builds up in the space between the cells of your body. There are many reasons this can happen, some quite serious and many minor or transient. You should consult your doctor to determine the cause of your swelling, which you may hear referred to as edema. Among the possible causes for swollen feet & legs: