Magnesium for Leg & Foot Cramps
Stop nighttime leg cramps and restless legs
About Magnesium
Magnesium deficiency is one of the most common — and most overlooked — causes of nighttime leg and foot cramps. The right form (glycinate or citrate) is well absorbed and gentle on the stomach.
Why patients use it
Fewer nighttime cramps
Most patients notice fewer episodes within 1–2 weeks of consistent dosing.
Calmer restless legs
Magnesium supports proper neuromuscular signaling and reduces twitching.
Better sleep
Magnesium glycinate has a calming effect and supports sleep quality.
Heart & bone support
Critical co-factor for healthy heart rhythm and bone mineralization.
Typical use
Typical dose is 200–400 mg of magnesium glycinate or citrate at bedtime. Higher doses can cause loose stools — back off if that happens.
Educational information only — always confirm dosing with Dr. Lyons, especially if you take prescription medications or have kidney or liver disease.
Brands we carry
Frequently asked questions
Which form is best?+
Glycinate is gentlest and best for cramps and sleep. Citrate is also well absorbed but can be laxative.
Is it safe with kidney disease?+
Patients with reduced kidney function need lower doses — always confirm with Dr. Lyons.
How long before magnesium helps leg cramps?+
Most patients notice fewer nighttime cramps within 1–2 weeks of taking it consistently at bedtime. If nothing changes after 4 weeks, the cramps are likely coming from something else and should be evaluated.
How much magnesium should I take for cramps?+
200–400 mg of magnesium glycinate or citrate at bedtime is the usual range for adults. Start at the low end and increase only if needed; loose stools mean the dose is too high.
What else causes nighttime leg and foot cramps?+
Dehydration, low potassium, statins and diuretics, peripheral artery disease, spinal stenosis, and peripheral neuropathy all cause cramping. If cramps come with numbness, burning, swelling, or discolored feet, get your feet and circulation checked rather than treating with a supplement alone.
Should I take magnesium in the morning or at night?+
At night. Glycinate is calming and supports sleep, and cramps most often strike in bed, so bedtime dosing lines up with when you need it.
Order Magnesium
Shop our curated, professional-grade selection through Fullscript. Shipped directly to your door.
Shop MagnesiumQuestions? Call our team at 662-449-3663.
Ready to Get Relief?
Call Foot Health Centers to schedule your visit in Hernando or Southaven.