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.
Plantar Fasciitis. Plantar fasciitis is considered the most common cause of foot pain. The plantar fascia, the ligament that runs along the sole of the foot, becomes inflamed, causing pain. Sportsmen and women, those who have to stand for long hours and those who are overweight are especially prone to plantar fasciitis.