Magnesium · Capsules
Magnesium Glycinate
Straightforward, well-absorbed magnesium at 120 mg per capsule, so you can build your dose up gradually. Costs more per milligram than a bulk powder, but the label is one ingredient, no blend.
Best for
- Adults who want to titrate their dose one capsule at a time
- Anyone who gets loose stools from higher-dose magnesium forms
Not for
- Buyers who want the lowest cost per milligram of elemental magnesium
Where it fits in the program
Magnesium
- Primary role
- Muscle function and energy metabolism
- Contribution to healthy aging
- Supports normal muscle contraction, nerve signaling and cellular energy production.
The rest of the program
Each supplement covers a different job. You only need the ones that match your goals.
- Muscle Power: Lifting after 40? Meet one of the most-studied supplements for getting more from the work. Creatine
- Activate Calm: Still wired at 10pm? Meet the compound from tea that people take to wind down. L-theanine
What is in it
| Ingredient | Per serving | Dose used in research |
|---|---|---|
| Magnesium (as magnesium glycinate) | 120 mg | Supplemental intake studied up to 350 mg/day, the tolerable upper limit for supplemental elemental magnesium |
Serving size: 1 capsule
What the research says
Supports normal muscle and nerve function
verifiedRobust evidenceMagnesium is required for muscle contraction and nerve signaling, and most US adults do not meet the recommended daily intake from food alone.
Supports normal energy metabolism
verifiedRobust evidenceMagnesium is a cofactor for the enzymes that convert food into usable cellular energy.
May support sleep quality when magnesium intake is low
verifiedEarly evidenceA 7-week randomized trial in adults over 50 with poor sleep found sleep scores improved on magnesium citrate, but improved by a similar amount on the placebo too, so the trial could not show magnesium caused the change.
What the grades mean is explained in how we choose.
Quality and testing
- Not NSF Certified for Sport. A separate magnesium bisglycinate powder from the same brand carries that mark; this glycinate capsule does not.
- The brand states the product is made under NSF-audited cGMP manufacturing, but publishes no independent certificate of analysis for this specific SKU.
See what the brand itself claims about this ingredient, and how Brian grades each claim
Safety
- Do not take magnesium supplements if you have kidney disease unless your doctor advises it.
- Separate from some antibiotics and osteoporosis medicines by a few hours; ask your pharmacist.
- Higher doses of most magnesium forms can loosen stools; glycinate is one of the gentler forms.
Pros and cons
Pros
- Single ingredient, easy to check against the label
- Sold direct from the brand, no marketplace resale risk
- One-capsule serving makes it easy to adjust your dose
Cons
- Higher cost per milligram of elemental magnesium than a bulk glycinate powder
- Not NSF Certified for Sport, unlike the creatine pick
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. This page is general information, not medical advice. Talk to your doctor before starting a supplement, especially if you are pregnant, have a medical condition or take medication.
Magnesium Glycinate
$26.00 · $0.29/serving