7. Make Some Dietary Changes
The biggest dietary driver of swelling and water retention is salt. Reducing your intake is healthy for lots of reasons, including kidney health, but you will also suffer less from swollen feet.
Sodium and potassium work together to regulate fluid balance, so a deficiency of potassium (especially when coupled with too much sodium) can also cause water retention. Good sources of potassium include bananas, sweet potatoes, white beans, salmon, and chicken.
A magnesium deficiency may also cause your body to retain water, so adding more foods like almonds, spinach, dark chocolate, and broccoli can help you get enough. If nothing else, you can take a 200-400 mg supplement of magnesium each day, but only if your doctor approves – supplements are not recommended for people with kidney or heart conditions.