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.
Many people feel pain on the arch of their feet after a long workday, while others overuse their feet exercising or playing sports. A foot deformity, such as hammertoe or clubfoot, can also cause this pain. Medical conditions such as diabetes or obesity can put additional stress on your feet, thereby causing arch pain. Your footwear is also important. Shoes should support all parts of your foot, especially the bottom.