Restless leg syndrome (RLS) responds to a combination of lifestyle changes, targeted supplements, and, when needed, prescription medication. The most effective starting points are checking your iron levels, building a regular exercise habit, and identifying substances that may be making your symptoms worse. Most people can significantly reduce the urge to move their legs at night with these steps alone or in combination with medication.
Check Your Iron Levels First
Low iron is one of the most common and fixable causes of restless legs. Your brain needs iron to produce dopamine, the chemical messenger most directly involved in RLS. When iron stores drop, dopamine signaling falters, and the uncomfortable sensations in your legs ramp up.
The key number to know is your serum ferritin level, which measures how much iron your body has in reserve. Current practice guidelines recommend iron replacement therapy when ferritin is below 75 ng/mL, with stronger recommendations when it falls below 20. This is worth noting because a standard lab report might flag your iron as “normal” even at levels that can worsen RLS. If you haven’t had your ferritin checked, that’s the single most useful first step. Some people find their symptoms resolve entirely once iron stores are replenished.
Exercise That Actually Helps
Regular physical activity is one of the best-studied non-drug treatments for RLS. Both aerobic exercise and stretching routines have been shown to meaningfully reduce symptom severity, with one trial finding a 58% drop in RLS severity scores after six months of moderate cycling. The key is consistency over weeks, not a single session. Several studies found that improvements became significant around the eight-week mark, so early dropoff is common if people expect immediate results.
Stretching routines that target the lower body are particularly well supported. Effective protocols in clinical trials included:
- Frequency: Two to three sessions per week, 15 to 30 minutes each
- Stretches: Hamstring stretches, calf stretches, quadriceps stretches, hip rotations, knee-to-chest pulls, and straight leg raises
- Hold time: Three sets of each stretch, holding for about five seconds per repetition
Aerobic exercise like walking, cycling, or swimming at moderate intensity (where you can still hold a conversation) also works. One trial compared a six-month exercise program to low-dose medication and found them equally effective at relieving RLS symptoms. You don’t need to train hard. Moderate, regular movement is the goal.
Substances That Make RLS Worse
Several common medications and everyday substances can trigger or intensify restless legs. Knowing what to watch for can save you from unknowingly fueling your symptoms.
Antihistamines are a frequent culprit. Diphenhydramine, the active ingredient in many over-the-counter sleep aids and allergy medications, blocks dopamine activity in the brain and often makes RLS noticeably worse. If you’re taking a nighttime sleep aid that contains an antihistamine, it may be the reason your legs are keeping you awake.
Antidepressants are another major category. SSRIs and SNRIs, the most commonly prescribed antidepressants, have been repeatedly linked to worsening RLS. This doesn’t mean you should stop taking a prescribed antidepressant on your own, but it’s worth raising with your prescriber if your RLS started or worsened after beginning one. Anti-nausea medications that block dopamine can also be triggers.
Caffeine has long been suspected of worsening RLS because of its stimulant effects on muscles and the nervous system, though a large prospective study found no statistically significant link between caffeine intake and RLS risk. Still, many people with RLS report that cutting back on coffee and tea in the afternoon and evening helps their nighttime symptoms. Smoking, particularly heavy smoking, is associated with a modestly increased risk of developing RLS. The relationship with alcohol is more complicated: some research actually suggests a slightly protective effect, though alcohol disrupts sleep quality in other ways.
Massage, Reflexology, and Physical Therapies
Hands-on therapies offer real short-term relief. Massage techniques like effleurage (long, smooth strokes along the legs) and foot reflexology have both been shown to reduce RLS severity and improve sleep quality in clinical studies. These aren’t cures, but they can calm symptoms on a given night. Self-massage of the calves and thighs before bed is a practical option when professional massage isn’t available.
Warm baths, heating pads, and cold compresses also help some people. The mechanism likely involves temporarily changing blood flow and sensory input in the legs, which can override the uncomfortable sensations. Experimenting with heat versus cold is worthwhile since people respond differently.
Magnesium and Other Supplements
Magnesium is one of the most commonly recommended supplements for RLS, but the evidence is mixed. Magnesium plays a role in muscle relaxation by counteracting calcium’s effect on nerve and muscle activation. One clinical trial found that magnesium combined with vitamin B6, taken for two months, reduced RLS symptoms and improved sleep quality. However, systematic reviews have concluded there isn’t enough solid evidence to recommend magnesium as a reliable RLS treatment across the board. It may help a subset of people, particularly those who are magnesium-deficient, but it’s not a guaranteed fix.
If you want to try magnesium, forms like magnesium glycinate or magnesium citrate are generally well absorbed. It’s a low-risk option, though it’s unlikely to be sufficient on its own for moderate to severe RLS.
When Medication Is Needed
For RLS that doesn’t respond well enough to lifestyle changes, prescription medications can make a significant difference. Current treatment guidelines recommend starting with a type of nerve-calming medication (alpha-2-delta ligands like gabapentin or pregabalin) rather than dopamine-boosting drugs, unless there’s a specific reason to choose otherwise. These medications reduce nerve excitability and tend to improve sleep without the long-term complications associated with older RLS drugs.
Dopamine agonists (ropinirole, pramipexole, or the rotigotine patch) are also FDA-approved for RLS and work well initially. The concern with these medications is a phenomenon called augmentation: over time, the drug can paradoxically make RLS worse. Symptoms start earlier in the day, spread to the arms, and become more intense, requiring higher doses that only accelerate the cycle. This doesn’t happen to everyone, but it’s common enough that doctors now prefer to try other options first.
Signs that augmentation may be happening include needing to take your medication earlier and earlier, symptoms appearing in parts of your body that weren’t previously affected, and a general sense that the medication is losing its effectiveness despite dose increases.
Underlying Conditions Worth Investigating
RLS sometimes shows up as a secondary symptom of another condition rather than existing on its own. The three most common underlying causes are iron deficiency (already covered above), kidney disease, and pregnancy.
In kidney disease, RLS is especially common among people on dialysis. Factors like anemia and high phosphate levels contribute, and the restless legs often resolve within weeks of a successful kidney transplant. For pregnant women, RLS frequently appears in the third trimester and typically resolves after delivery, likely driven by hormonal shifts and increased iron demands.
If your RLS came on suddenly or worsened significantly, it’s worth investigating whether an underlying condition is driving it. Treating the root cause, when one exists, often resolves the restless legs entirely.