Magnesium glycinate Dosage and Timing: What Owners Report
In 36 Reddit owner comments that give an amount, the typical Magnesium glycinate dose was 240 mg (middle half: 200 to 400 mg). The timing people mention most is at night or before bed (79 comments). These numbers describe what people with stress, anxiety or low mood say they take on Reddit (May 2026 to October 2026); they are not dosing advice. Follow the label and ask a doctor or pharmacist, especially if you take medicines.
Amounts owners mention
| Unit | Comments | Typical (median) | Middle half | Most-mentioned amounts |
|---|---|---|---|---|
| mg | 36 | 240 | 200 to 400 | 200 (9), 400 (6), 300 (5) |
Counted from amounts written next to the name Magnesium glycinate in 37 owner comments (a comment can give more than one amount). Products differ in strength, so a number of capsules or scoops is not comparable between brands. Most-mentioned: 200 mg (9), 400 mg (6), 300 mg (5).
What studies and NIH sources say
- The NIH upper limit for magnesium from supplements is 350 mg a day for adults; higher doses commonly cause diarrhea, nausea and abdominal cramping.[NIH Office of Dietary Supplements]
- Magnesium can reduce the absorption of some antibiotics (tetracyclines, quinolones) and bisphosphonates, so the NIH advises spacing the doses apart.[NIH Office of Dietary Supplements]
When people take it
| Timing mentioned | Owner comments |
|---|---|
| At night or before bed | 79 |
| In the morning | 18 |
| With or after food | 4 |
Phrases such as "before bed", "in the morning" or "with food" near the name Magnesium glycinate.
How long it takes, according to owners
| Timeframe mentioned | Comments | Positive | Negative |
|---|---|---|---|
| Minutes to hours | 1 | 1 | 0 |
| Within the first week | 4 | 1 | 0 |
| 1 to 4 weeks | 11 | 7 | 1 |
16 owner comments mention a timeframe such as "after 2 weeks", "within an hour" or "it took a month". A timeframe can describe when someone noticed a change or how long they tried it before giving up, so read it as a rough signal.
2/5 Falling asleepTakes time“Started magnesium glycinate for sleep, didn't really knock me out but after two weeks I noticed my jaw wasn't clenched into a fist all day.”
4/5 Calming effect“Magnesium glycinate also helps me chill out when my brain won't stop racing but takes maybe an hour to kick in”
5/5“Magnesium glycinate helped me a lot with the physical anxiety symptoms, stopped that constant chest tightness I used to get.”
In their words
4/5 Stomach upsetTaste & form“i switched from citrate to glycinate about 6 months ago and for me the difference was noticeable.”
4/5 Calming effectGrogginess“For me it was magnesium glycinate (400mg at night).”
2/5“ngl it did nothing for me personally, took glycinate for like 6 weeks and couldn't honestly tell a before/after difference.”
5/5 Mood“I'm not a woman but I had similar energy crash and mood swing from work stress, magnesium glycinate before sleep made huge difference for me”
4/5 Calming effectSleep depth“Yes, I've found taking a short break can be a good way to notice whether magnesium glycinate is actually supporting you.”
4/5 Sleep depthFalling asleep“I take the mag threonate because mag glycinate before sleep makes me very anxious and then I can't fall asleep or stay in a deep sleep.”
Magnesium glycinate overall: 4.0 from 370 owner comments.
Frequently asked
How much Magnesium glycinate do people take?
In 36 Reddit owner comments that give an amount, the typical Magnesium glycinate dose was 240 mg (middle half: 200 to 400 mg). That is what people report, not a recommended dose; follow the product label and your doctor's advice.
When do people take Magnesium glycinate?
The timing people mention most is at night or before bed (79 comments). In the morning: 18; With or after food: 4.
How long does Magnesium glycinate take to work?
16 owner comments mention a timeframe near Magnesium glycinate (for example "after two weeks" or "within an hour"). Minutes to hours: 1; Within the first week: 4; 1 to 4 weeks: 11. Individual experiences vary widely.