Elevating your feet above heart level for 15 minutes, three to four times a day, is one of the simplest and most effective ways to reduce swelling. But depending on what’s causing your puffy feet, you’ll likely need a combination of strategies. Swelling happens when excess fluid gets trapped in the tissue of your lower extremities, often due to gravity, prolonged standing, too much sodium, or an underlying health condition. Here’s what actually works to bring it down.
Elevate Your Legs the Right Way
Gravity is the single biggest reason fluid pools in your feet. When you sit or stand for hours, blood and lymph fluid naturally settle downward. Elevation reverses that flow. The key detail most people miss: your feet need to be above the level of your heart, not just propped on an ottoman. Lie on your back and rest your legs on a stack of pillows, the arm of a couch, or against a wall. Hold this position for about 15 minutes, and repeat three to four times throughout the day. You’ll often notice a visible difference after just one session, but consistency over several days makes the biggest impact.
Move Your Ankles and Calves Often
Your calf muscles act as a pump for your veins, squeezing blood back up toward your heart every time they contract. When you sit still for long stretches, that pump shuts off and fluid accumulates. Ankle pumps are the easiest fix: point your toes toward your knees, then point them away from you, alternating as far as you can in each direction. Do this for two to three minutes, and repeat two to three times every hour when you’re seated for long periods.
Walking is even better if you’re able. A 10-minute walk activates the full calf pump and gets lymphatic drainage moving. If swelling is a daily problem for you, short walks scattered throughout the day will do more than one long walk in the evening.
Try Compression Stockings
Compression stockings apply graduated pressure, tightest at the ankle and gradually loosening toward the knee. This counteracts the downward pull of gravity and helps your veins push fluid back up. They’re especially useful if you spend long hours on your feet, travel frequently, or deal with chronic mild swelling.
Stockings come in different pressure levels measured in mmHg. For mild, occasional swelling or air travel, 15 to 20 mmHg provides light support. For moderate swelling or ongoing fluid retention that your doctor has evaluated, 20 to 30 mmHg is the most commonly prescribed daytime level. Higher pressures exist but typically require a fitting and medical guidance. Put them on first thing in the morning before swelling builds, and wear them throughout the day.
Cut Back on Sodium
Sodium causes your body to hold onto water. The average American consumes about 3,700 mg of sodium per day, well above the 2,300 mg general guideline. The American Heart Association recommends an even lower target of 1,500 mg per day. If swollen feet are a recurring issue for you, sodium is one of the first things to look at.
Most excess sodium doesn’t come from the salt shaker. It hides in processed foods, restaurant meals, canned soups, deli meats, bread, and condiments. Reading nutrition labels and cooking more meals at home are the two most practical ways to get your intake under control. Many people notice a meaningful reduction in swelling within a few days of cutting back.
Drink More Water, Not Less
It sounds counterintuitive, but drinking more water can actually reduce swelling. When you’re mildly dehydrated, your kidneys hold onto sodium and fluid as a protective measure. When you drink enough, your kidneys shift into a higher gear. Urine production increases within about 30 minutes of drinking a large glass of water, peaks around one hour, and returns to baseline after roughly three hours. During that process, your kidneys flush out excess sodium and the water it was holding onto. Staying consistently hydrated throughout the day keeps this system running smoothly and prevents the retention cycle that contributes to puffy feet.
Consider a Magnesium Supplement
Magnesium plays a role in fluid balance, and some people with swollen feet are not getting enough of it. Cleveland Clinic suggests that taking 200 to 400 mg of magnesium per day may help reduce swelling. You can also increase magnesium through food: dark leafy greens, nuts, seeds, avocados, and dark chocolate are all good sources. If you have kidney problems or heart disease, check with your doctor before starting a supplement, since your kidneys handle magnesium excretion and impaired kidney function changes how your body processes it.
Prevent Swelling During Travel
Long flights and car rides are a perfect storm for foot swelling: you’re sitting still, your legs are bent, and cabin pressure on planes can make things worse. Compression stockings are one of the best preventive measures for travel. Beyond that, set a reminder to do ankle pumps every 30 minutes, get up and walk the aisle when you can, stay hydrated, and avoid alcohol and salty snacks. These small steps can make a noticeable difference on flights longer than three or four hours.
Swelling That Needs Medical Attention
Most foot swelling is harmless and responds well to the strategies above. But certain patterns signal something more serious. Swelling in only one leg, especially when accompanied by pain, warmth, or redness, can indicate a deep vein thrombosis (a blood clot). This requires emergency evaluation because the clot can break loose and travel to the lungs, causing chest pain, shortness of breath, or coughing up blood.
If swelling comes on suddenly in your face and hands during pregnancy, that’s a warning sign of preeclampsia, a dangerous blood pressure condition. Normal pregnancy swelling tends to develop gradually and stays in the lower legs. Sudden puffiness in your upper body is different and warrants an immediate call to your provider.
Swelling that pits when you press on it (leaving a visible dent), swelling that doesn’t improve with elevation over several days, or swelling paired with shortness of breath can point to heart, kidney, or liver problems. In these cases, the fluid buildup is a symptom of something deeper that home remedies alone won’t fix.