Magnesium Glycinate vs Citrate for Sleep: Which Is Better?
The experts weigh in on the best way to get a few more hours of rest.
Over the past year or so, my sleep schedule has become pretty atrocious. It’s never falling asleep that’s my issue—give me some YouTube thunderstorm sleep sounds, and I’m knocked out in five minutes. Staying asleep is where things are touch-and-go. I’ve been waking up multiple times to pee, sometimes because my skin is akin to an inferno, and occasionally because I’m just generally restless. I know it’s less than ideal (sleep is important!), so I went to see Jill Villa, a physician’s associate and the founder of Goldhaus Wellness (if you’re in NYC you must go see her) for a consultation.
We went over my bloodwork first and foremost—and then talked about ways to tackle my sleep concerns. “Sleep is when your body does its best work. It’s repairing cells, balancing hormones, strengthening your immune system, and literally cleaning out your brain,” says Villa. “You can’t out-supplement, out-green juice, or out-HIIT a bad night’s sleep.” I personally wasn’t interested in melatonin or sedatives, so to help me clock eight hours, Villa recommended a magnesium supplement.
But choosing the right one—and the right dosage—is where I really needed her guidance. There’s magnesium glycinate and magnesium citrate, along with a few other variations—and they work slightly differently. To learn which one is best for sleep, plus everything else you need to know about taking magnesium, keep reading. Villa, along with nutritionist Rachel Brief and board-certified sleep medicine physician Saema Tahir, MD, are explaining everything there is to know about magnesium glycinate vs citrate, ahead.
Can Magnesium Help Me Fall and Stay Asleep?
Magnesium can absolutely help with sound sleep. It’s not a sedative, so it won’t force you to bed, but it can help “support relaxation and make it easier to fall asleep and stay asleep,” says Villa. Think of it like a little nudge that tells your body it’s time to wind down and relax. It works differently for everyone, but I find that within about 30 minutes of taking it, my eyes feel heavier and my whole system experiences a wash of calm.
There’s not enough research in the magnesium department to say with certainty how it affects sleep cycles but there’s proof in practice. "I’ve found anecdotally that it can be incredibly helpful for the majority of patients, particularly when stress or difficulty winding down is contributing to poor sleep,” says Brief.
What’s the Difference Between Magnesium Glycinate vs Citrate for Sleep?
“One is for winding down, and one is for moving things along,” says Villa. Magnesium glycinate is typically recommended for sleep and relaxation, whereas citrate is often used to help relieve constipation. "Both are well-absorbed forms of magnesium, just bound to different partners. Magnesium citrate is attached to citric acid. It's inexpensive, easy to find, and absorbs well, but it pulls water into the bowel, so it has a stronger laxative effect," says Dr. Tahir. "Magnesium glycinate is attached to an amino acid called glycine. It's also well absorbed but tends to be gentler on the stomach, which is why it's the popular pick for sleep and everyday use."
Are There Other Benefits to Taking Magnesium Glycinate vs Citrate?
While most people associate magnesium with better sleep or digestion, there are actually so many more benefits to taking it. “Magnesium is essential for hundreds of processes in the body, including muscle and nerve function, blood pressure, blood sugar, and bone health,” says Dr. Tahir. “Its clearest benefit is correcting a true deficiency, which is more common in older adults, people with certain health conditions, and those taking long-term acid-reducing medications. It's also commonly used for muscle cramps, though the evidence there is mixed.”
The added benefits of the two are more nuanced: citrate is more likely to loosen stool, while glycinate is better for muscle relief and relaxation.
How Much Magnesium Should I Take?
Villa’s motto is “start low, go slow,” telling patients to begin between 100 to 200 mg of magnesium (glycinate or citrate) at night and then adjust based on how your body responds. “Look for the words 'elemental magnesium' on the label, since that's the number that actually counts,” says Tahir. “For general reference, adult women need roughly 310 to 320 milligrams a day from all sources combined, including food.” Just remember: the goal isn’t to work yourself up to the highest dose possible. More doesn’t always mean better.
Are There Any Side Effects to Taking Magnesium?
The most common side effect is an upset stomach, especially when taking magnesium citrate. Otherwise, it’s fairly well tolerated, but as always, talk with your healthcare provider before adding anything new to your routine. “People with significant kidney impairment need to be especially cautious because the kidneys are responsible for clearing excess magnesium. Magnesium can also interfere with the absorption of certain medications, including some antibiotics and thyroid medications,” adds Brief.
How Much Sleep Do I Really Need?
It depends—but most adults need seven to nine hours. “There is research suggesting women tend to sleep a bit longer on average, while also experiencing more sleep disruption,” says Brief. “A woman’s sleep needs and quality can change throughout her life with hormonal shifts, including the menstrual cycle, pregnancy, postpartum, and menopause. I also look beyond the number—if someone is getting eight hours but consistently waking up exhausted, that’s worth paying attention to.”
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Meet the Experts
Jill Ketner Villa is a Physician Associate with more than 15 years of clinical experience and a passion for redefining modern healthcare. A graduate of Weill Cornell Medical College, where her master’s thesis focused on integrative medicine, Jill began her career in surgical and inpatient medicine before turning her focus to longevity care.
For the past six years, she has specialized in advanced longevity medicine, guiding patients with evidence-based therapies that optimize healthspan, resilience, and vitality. Jill’s multidisciplinary background allows her to bridge conventional medicine with cutting-edge science, delivering highly personalized care that helps patients thrive at every stage of life. She has also published scholarly articles in the field, further contributing to the advancement of evidence-based longevity and precision medicine.
She lives in New York with her husband and their twin daughters, where she continues to balance her expertise in medicine with her commitment to family, wellness, and innovation.
Rachel is a Registered Dietitian Nutritionist with a passion for personalized, holistic care. She earned her master’s in Clinical Nutrition and Dietetics from NYU and a Bachelor of Science from the University of Maryland College Park’s School of Public Health. Certified in Obesity and Weight Management by the Academy of Nutrition and Dietetics, Rachel brings an empathetic and tailored approach to counseling, shaped by her experience in private practice. She is dedicated to helping members understand the profound impact of nutrition and wellness on their lives, bridging the gap between knowledge and action. Rachel believes that while life is busy, feeling great should be simple. Based in New York City, she enjoys reading, hot yoga, strolling through Central Park, and discovering new finds at Trader Joe’s.
Dr. Saema Tahir, M.D. is a mother, wife, and passionate physician who evaluates and treats adults and pediatric sleep disorders as well as adolescent and adult pulmonary disease. She practices with integrity and puts patient communication at the forefront. For Dr. Tahir, best care involves trust on top of a true holistic approach — meaning tailored assessments and treatment plans that involve a comprehensive physical, social and psychological evaluation.
