Supplement Recipe Check
Magnesium Glycinate vs Citrate vs L-Threonate
An independent reference guide to ingredient forms, characteristics, and key considerations.
Magnesium products are easier to compare when you check elemental magnesium, chemical form, serving size, and capsule count together.
Community experiences
Selected positive personal experiences from external communities, edited and summarized. These accounts do not establish effectiveness.
One contributor said that after taking magnesium glycinate before bed, they would naturally feel sleepy while reading an e-book. They wrote that even when they woke during the night, it helped them fall asleep again instead of staying awake on their phone. They also noted that checking their usual food log suggested their magnesium intake had been on the low side.
Experience shared by external community contributor A
A contributor who had trouble sleeping at a similar time each month, as well as generally poor sleep, said that sleepless nights became less frequent after taking glycinate before bed. They also described less soreness the day after exercise and finding it easier to keep training at the gym. They were taking zinc for exercise recovery at the same time.
Experience shared by external community contributor B
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A contributor who started taking magnesium because of severe leg cramps every night wrote that using citrate powder in the evening made sleep more comfortable and that the nighttime cramps stopped. They had chosen a raspberry-lemon-flavored powder. They described dissolving it in warm water and drinking it before going to bed.
Experience shared by external community contributor C
This page is for general reference only and is not medical advice, diagnosis, treatment, or prescription. Research and regulatory status can change, so ask a qualified professional when medical judgment is needed.
Questions before taking a supplement
Sources checked:
Which foods provide magnesium?
Beans, nuts, seeds, whole grains and leafy greens supply magnesium. Review food intake before choosing a supplement. Magnesium supports normal muscle and nerve function and bone formation.
Source: NIH ODS: MagnesiumDo cramps or fatigue prove magnesium deficiency?
They can occur with deficiency but are not diagnostic. Digestive conditions and medicines may contribute. Persistent symptoms need assessment, not a diagnosis based on whether a supplement seems to help.
Source: NIH ODS: MagnesiumWhy does the supplemental limit differ from daily requirements?
The US adult upper limit of 350 mg/day covers supplemental and medicinal magnesium, not magnesium in food. Daily requirements include food. This upper limit is neither a dosing target nor a universal national standard.
Source: NIH ODS: Magnesium2026 search trend
In ConsumerLab’s 2026 survey, magnesium rose 5.3 percentage points and remained the second-most-purchased supplement. Search behavior is also becoming more form-specific, especially around glycinate and L-threonate.
What to compare on product labels
- Check the form listed in Supplement Facts: glycinate, citrate, L-threonate, oxide, or a blend.
- Compare elemental magnesium per serving rather than the larger compound weight on the front label.
- Check capsules per serving, daily frequency, added minerals, and price per serving.
- No single form is automatically best for everyone; tolerability and convenience still matter.
Other names and search terms
Ingredients often compared together
Cautions
- Supplemental magnesium can cause diarrhea, nausea, or abdominal cramping.
- Ask a qualified professional if you have kidney disease or take prescription medicine.
- Some antibiotics and other medicines may need to be separated from magnesium.
Check products on Supplecipe
Search by ingredient and amount, use the single-ingredient filter, and open the full label to check candidate products.
Detailed magnesium search
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