Magnesium glycinate Dosage and Timing: What Owners Report
In 43 Reddit owner comments that give an amount, the typical Magnesium glycinate dose was 240 mg (middle half: 175 to 430 mg). The timing people mention most is at night or before bed (78 comments). These numbers describe what people with IBS say they take on Reddit (November 2025 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 | 43 | 240 | 175 to 430 | 200 (7), 400 (6), 100 (6) |
| capsules or tablets | 7 | 2 | 2 to 3 | 2 (4), 3 (2) |
Counted from amounts written next to the name Magnesium glycinate in 53 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 (7), 400 mg (6), 100 mg (6).
What studies and NIH sources say
- Diarrhea is the classic side effect of high-dose magnesium salts; owners often describe glycinate as milder on the bowel.[NIH Office of Dietary Supplements]
- The NIH upper limit for supplemental magnesium is 350 mg a day for adults unless a doctor advises more.[NIH Office of Dietary Supplements]
When people take it
| Timing mentioned | Owner comments |
|---|---|
| At night or before bed | 78 |
| In the morning | 17 |
| With or after food | 9 |
| Split into two doses | 5 |
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 | 2 | 1 | 0 |
| Within the first week | 1 | 0 | 1 |
| 1 to 4 weeks | 6 | 2 | 1 |
| More than a month | 2 | 0 | 1 |
10 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.
4/5“I sometimes take magnesium glycinate for better sleep which I take an hour before I go to bed.”
1/5 Bloating & gasSide effects“I started taking magnesium glycinate on Saturday and today is Tuesday, I have been soooooo bloated, gassy and nauseous.”
In their words
4/5“I take 600 mg a day of Magnesium bisglycinate for headaches and sleep.”
4/5“What helped me was magnesium glycinate and Galieve Forte at night”
2/5 Side effects“magnesium bisglycinate (140 mg) works relatively well for me.”
3/5 Side effects“Almost same what I’ve faced, what I can tell you that you have to be very careful of what you are eating, try Low FODMAP, it worked for me doing low fodmap diet for 3 months and taking magnesium glycinate daily at night + glutamine 5 g…”
4/5“To regulate the minerals I mix small amounts of Liquid IV in my water and take mag glycinate at night.”
4/5“Mag gly will help recovery best when in a severe deficiency, its absorbed best.”
Magnesium glycinate overall: 3.7 from 264 owner comments.
Frequently asked
How much Magnesium glycinate do people take?
In 43 Reddit owner comments that give an amount, the typical Magnesium glycinate dose was 240 mg (middle half: 175 to 430 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 (78 comments). In the morning: 17; With or after food: 9.
How long does Magnesium glycinate take to work?
10 owner comments mention a timeframe near Magnesium glycinate (for example "after two weeks" or "within an hour"). Minutes to hours: 2; Within the first week: 1; 1 to 4 weeks: 6; More than a month: 2. Individual experiences vary widely.