Supplements for restless legs at night

Written to our editorial standards · reviewed against published research· Updated 2 Jun 2026
Sleep

Restless legs are strongly linked to low iron stores; checking ferritin and correcting low iron is the first and most effective step, with magnesium as support.

Low ferritin is one of the best-established nutritional causes of restless legs syndrome, because iron is needed for the dopamine signalling that controls limb movement, and symptoms often improve when ferritin is raised above the lab's bare minimum. Magnesium may help muscle relaxation alongside.

Nutrients commonly linked

Iron Bisglycinate
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Magnesium Glycinate
See the guide →

Biomarkers worth checking

These are the blood tests most relevant here. Knowing your numbers tells you whether a supplement is the right answer.

FerritinSerum Iron
When to see a doctor

Restless legs that disrupt sleep are worth a doctor's visit to check ferritin (aim is usually well above the lab floor) and review any medications that can trigger it.

Beyond supplements

Cutting evening caffeine and alcohol and gentle stretching can reduce symptoms.

Common questions

What supplements help with restless legs at night?
Restless legs are strongly linked to low iron stores; checking ferritin and correcting low iron is the first and most effective step, with magnesium as support. The nutrients most often linked are Iron Bisglycinate, Magnesium Glycinate.
Which deficiencies are associated with restless legs at night?
Low ferritin is one of the best-established nutritional causes of restless legs syndrome, because iron is needed for the dopamine signalling that controls limb movement, and symptoms often improve when ferritin is raised above the lab's bare minimum. Magnesium may help muscle relaxation alongside.
When should I see a doctor about restless legs at night?
Restless legs that disrupt sleep are worth a doctor's visit to check ferritin (aim is usually well above the lab floor) and review any medications that can trigger it.

Explore further

Find out what's actually low

Upload your bloodwork and we'll read the relevant markers, or take the quiz for a personalised stack.

Analyse my bloodwork →Take the quiz

Educational use only, not medical advice, diagnosis, or treatment. Symptoms have many possible causes, and the nutrients here are commonly associated with this symptom, not a guaranteed fix. Always consult a qualified clinician, especially if symptoms are severe, persistent, or new.