The Effect of Magnesium Citrate Supplementation in Restless Legs Syndrome (RLS)

Inclusion Criteria:

1. Age between 18 and 89.
2. Treatment naïve patients (who are not taking RLS medications for at least 1 year)without coexisting untreated OSA.
3. Diagnosed with RLS based on ICSD -3 criteria
4. INI OSF Sleep medicine outpatient clinic patients.
5. Patients with the ability to provide informed consent.

Exclusion Criteria:

1. Patients who are currently taking magnesium supplements or took magnesium supplementsin the last 3 months.
2. Patients not on a stable dosage of medications ( patients requiring dosage changes)that can cause PLMs or worsen RLS will be excluded ( medications includeantidepressants such as SSRIs, SNRIs and TCAs and Antihistamines such as Benadryl andAllegra, etc)
3. Patients with a history of chronic kidney disease or end-stage renal disease onHemodialysis
4. Patients with known allergies to magnesium citrate
5. Patients with congestive heart failure with an ejection fraction less than 40%,bradycardia with a resting heart rate below 60 and systolic blood pressure less than 90 mm of Hg.
6. Patients with diarrhea
7. Patients on gabapentin or pregabalin for pain syndromes
8. Pregnancy. (Absence of pregnancy will be determined via subject self-reporting only.Subject self-reporting of the absence of pregnancy is sufficient screening because thedosage of Magnesium supplement that subjects will be consuming during the study iswell below the NIH Tolerable Upper Intake Levels for pregnancy [see "DietaryRecommendations" below], and has been shown to cause no fetal abnormalities orpregnancy complications at the dosage patients will consume for the study. Subjectswill be encouraged to practice appropriate measures to avoid pregnancy throughout theentirety of their study participation).