Comfort • Circulation • Everyday steps
How to Reduce Swelling in Legs and Feet: Simple Steps for Leg Swelling
Puffy ankles and heavy, tired legs are uncomfortable, and sometimes worrying. Here are steps you can start today, what supplements can and cannot do, and the warning signs that need care right away.
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Key points
- Propping your feet up, moving your calf muscles, and wearing support stockings are the core steps.
- Eating less salt often helps, because salt makes the body hold on to water.
- Puffiness is often a sign of something else, such as a medicine, weak veins, or a heart, kidney, or liver problem.
- Shortness of breath, chest pain, or one swollen, painful calf needs help right away.
- Potassium products, including Tarsul, are not a treatment and can be risky for many people with this problem.
This page is general information, written by our founder. It is not medical advice.
Water Retention: What Causes Swelling
Edema is swelling caused by too much fluid trapped in the body’s tissues. It can happen anywhere, but it most often shows up in the lower legs, ankles, and feet (MayoClinic.org). Gravity pulls water down, so swollen ankles tend to look worse at the end of the day or after long periods of sitting or standing.
Common causes include (MayoClinic.org):
- Medicines, including some blood pressure pills, anti-inflammatory pain relievers, steroids, estrogens, and some diabetes and nerve pain medicines.
- Pregnancy.
- Weak or damaged veins, called chronic venous insufficiency.
- Heart failure, kidney disease, or liver disease.
Mild water retention after a salty meal, a hot day, or a long trip is common and often fades within a day or so. Swollen legs that last, or that come with other symptoms, deserve more attention, because fluid retention linked to a health condition may need medical treatment. Knowing the cause matters. When a disease is behind the fluid retention, that disease needs treatment too (MayoClinic.org).
Steps You Can Start Today
MayoClinic.org lists several simple steps that often help reduce swelling (MayoClinic.org).
Prop Up Above Heart Level
Hold the puffy body part above the level of your heart several times a day. Try propping your feet on a cushion while you rest on a sofa or bed, so they sit higher than your hips. Raising them works best when the whole calf is supported, not just the heel. Some people like a thin folded blanket under the mattress at the foot end, with your torso starting flat, so the angle stays gentle while you sleep. The same idea works for a puffy hand: try resting your arm on a pillow above chest height. A small stool in the place where you sit most makes it easy to raise one foot or both during the day.
Keep Your Calves Working
Using your muscles helps push fluid back toward the heart. Walking counts, and so do small movements when you sit. Ask your doctor about exercises such as these:
- Ankle circles in both directions.
- Toe points: point and flex your toes 10 times.
- Calf raises while holding a chair.
- Gentle stretching, then letting go to relax your leg muscles.
Regular walking is a simple daily habit that helps, and short walking breaks count. On long flights, move your feet, tighten and release your calves, and get up when you can. On long drives, stop every hour or two to stretch and walk around the car for a few minutes.
Wear Compression Socks
These are also called support stockings. To wear compression socks well, put them on in the morning, before swelling builds. They keep gentle pressure on the area so fluid does not collect, and they are usually worn after the puffiness goes down to keep it from coming back. Ask your doctor or pharmacist which strength is right for you.
Massage and Skin Care
Stroking toward the heart with firm but not painful pressure may help move fluid. Keep the skin clean and moisturized, and wear shoes, because dry, stretched skin is easier to injure and infect (MayoClinic.org). When the cause is lymphedema, a trained therapist may use a gentle, specialized massage as part of treatment.
Cut Back on Salt
Salt makes the body hold on to water and can make swelling worse (MayoClinic.org). Most of the salt people eat comes from packaged, restaurant, and processed foods rather than the salt shaker. Cooking more meals at home, choosing fresh vegetables, beans, and fruit, and reading labels for sodium can make a real difference. If you have heart, kidney, or liver disease, your doctor may give you a specific sodium and drink limit. Follow it, since it is built for your health needs.
Compression Therapy Options
Store-bought stockings are only one choice. For long-lasting puffiness, a doctor, nurse, or therapist at a wound care center may suggest firmer stockings, wraps, or a pump that inflates around your leg in cycles. These are fitted to you, and the right one depends on the cause. People with poor circulation in the arteries may not be able to use firm pressure, so get checked first.
Supplements and Natural Diuretics: An Honest Look
Horse Chestnut Seed Extract
For swelling caused by weak veins, a 2012 systematic review of 17 studies suggested that horse chestnut seed extract can improve symptoms, and one study found it may work about as well as compression stockings. Raw horse chestnut seeds, bark, flowers, and leaves are toxic. Standardized extracts have been used safely in studies for up to 12 weeks, but can cause dizziness, stomach upset, headache, or itching (NCCIH).
Dandelion and Other Herbal Water Pills
Dandelion is often sold as a natural diuretic, but there is very little research on it and no compelling evidence that it helps any health condition. It may also interact with water pills, blood thinners, and diabetes medicines (NCCIH).
Prescription Water Pills
For more serious cases, doctors may prescribe a diuretic, such as furosemide, to help the body get rid of extra water through urine. A health care provider should decide whether you need one (MayoClinic.org). You may read that drinking more water clears puffiness. Staying hydrated is fine for most people, but with heart or kidney disease, stick to the drink limit your doctor sets.
Where Potassium and Tarsul Fit
Tarsul is made mainly from cream of tartar, which is a concentrated source of potassium, with a smaller amount of MSM. Potassium helps the body balance sodium, so people often ask whether it can help. There is no good evidence that a potassium product treats puffy ankles, and we do not claim that Tarsul does.
There is also an important safety concern. Many of the conditions and medicines linked to swelling, such as kidney disease, heart failure, some blood pressure pills, and potassium-sparing water pills, can make potassium build up (NIH Office of Dietary Supplements). Swallowing large amounts of cream of tartar has caused dangerously high potassium levels (Medical Journal of Australia, 2025). Please talk with your doctor before taking Tarsul or any potassium product. Details are on our cream of tartar page.
A Note from Russ, Our Founder
In 2008 I was looking for answers to a health problem of my own, and I found an old pairing of sulfur and cream of tartar. I started Tarsul in 2010 so other people could use that simple two-ingredient mix without guessing at amounts.
People sometimes ask whether Tarsul helps with this. It is not the right tool, and I want to be clear about that. Puffy legs can be a small nuisance or an early sign of something that needs attention, and it is worth finding out which. The steps on this page are simple and safe for most people.
When to See a Doctor
Get medical help right away for shortness of breath, an irregular heartbeat, or chest pain. These can be signs of fluid in the lungs, which can be life-threatening (MayoClinic.org). Call 911 or go to the hospital if symptoms are severe. Also get care right away for sudden swelling and pain in one calf, or pain and swelling that do not go away after a long flight or car ride. These can be signs of a blood clot in a deep vein (MayoClinic.org).
Make an appointment if you have stretched or shiny skin, or skin that holds a dent after you press on the swollen area (MayoClinic.org). Leg swelling that is new, keeps coming back, or affects both legs deserves a check, because heart, kidney, liver, and circulation problems are easier to manage when found early. Ankles often swell in hot weather or late in pregnancy too, but tell your doctor about it anyway.
Frequently Asked Questions
What is the fastest way to ease swelling?
Prop your feet up above the level of your heart for a while, several times a day, and move your ankles and calves to pump fluid back toward the heart. Support stockings and less salt help keep it from coming back.
When is swelling an emergency?
Get help right away if puffiness comes with shortness of breath, chest pain, or an irregular heartbeat. Sudden swelling and pain in one calf can be a blood clot and also needs care right away.
Does potassium help with water retention?
Potassium helps balance sodium in the body, but it is not a treatment for this problem. Many people with puffy legs have heart or kidney problems or take water pills, and for them extra potassium can be dangerous. Ask your doctor first.
Are there natural diuretics that work?
Herbs sold as natural diuretics, such as dandelion, have very little research behind them. Water pills that work are prescription medicines, and a health care provider should decide whether you need one.
Can Tarsul help with swollen ankles?
No. Tarsul is made mainly from cream of tartar, which is high in potassium, with a smaller amount of MSM. It is not a treatment for swelling, and people with this problem should talk with their doctor before taking any potassium product.
Tarsul and Your Daily Routine
Tarsul is two ingredients, cream of tartar and MSM, with no proprietary blend, made in San Diego since 2010. Read about cream of tartar and MSM, see dosage and ingredients, or see Tarsul capsules and powder.
Related guides: high blood pressure, mineral deficiency, arthritis, and constipation.
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Sources
MayoClinic.org. Edema: symptoms and causes and diagnosis and treatment.
NCCIH. Horse chestnut: usefulness and safety.
NCCIH. Dandelion: usefulness and safety.
NIH Office of Dietary Supplements. Potassium fact sheet for health professionals.
Hyperkalaemic cardiac arrest due to cream of tartar ingestion. Med J Aust. 2025;222(11).
About this page — last reviewed October 2026
Written by Russ Guillemot, founder of Tarsul. Tarsul is a family-run dietary supplement company in San Diego, California, selling since 2010. We are not physicians, and nothing on this page is a diagnosis or a treatment plan. Where we cite research, we link to it so you can read it yourself.
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These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.