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.
Abnormally thick, cracked, and yellowing toenails may be caused by fungal infections, friction from shoes, injuries or conditions such as diabetes or psoriasis. Diabetic Foot Problems. You may have reduced sensation in your feet from diabetes, making it hard to realize that your foot is injured. Also, blood flow in your feet is impaired in diabetes, so infections can be harder to fight off. Osteoarthritis, gout, and rheumatoid arthritis are among the conditions that can cause severe foot pain.