Magnesium L-threonate is best known for its brain-boosting benefits, including improved memory, focus, and sleep.
Magnesium citrate is often used to relieve constipation and support bone health.
Both are taken by mouth and come in capsule, powder, or liquid forms.

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Choosing the best magnesium supplement for you depends on your reasons for taking it and your overall health goals.
Magnesium citrate combines magnesium with citric acid, which gives it a gentle laxative effect.
Potential Health Benefits of Magnesium L-Threonate
1.
Improving Cognitive Function
Magnesium L-threonateis the only form of magnesium that crosses the blood-brain barrier.
Study participants reported improved sleep quality, mood, energy levels, alertness, and productivity during the day.
Potential Health Benefits of Magnesium Citrate
1.
Constipation Relief
Magnesium citrate draws water into the intestines, helping soften stool and stimulate bowel movements.
It works within 30 minutes to 6 hours, making it an effective treatment for occasional constipation.
Who Should Avoid Taking Magnesium Supplements?
you’re able to also find magnesium citrate in liquid formulas.
Avoid taking magnesium L-threonate and magnesium citrate together.
Magnesium L-threonate and magnesium citrate are popular options to boost your body’s magnesium levels.
2022;11(6):e021783.
2024;22(3):e8656.
DailyMed.Magnesium citrate - liquid.
How do I know how much magnesium I am actually getting from my supplement?
Food and Drug Administration.Dietary supplements.
Drugs.com.Drug interactions between magnesium citrate and magnesium threonate.