Best Overall
Swanson Triple Magnesium Complex
Key details
- Format
- Vegan capsule
- Capsule Count
- 300
- Magnesium Forms
- Citrate, oxide, glycinate
- Magnesium Amount
- 400 mg
Three forms, and the right three for most people — that's the short answer to why this is our top pick. Citrate, oxide and glycinate cover the practical bases: glycinate is the gentle, well-tolerated one, citrate is the form that keeps things moving, and oxide adds density to the dose. At 400 mg you land within reach of the 420 mg daily value without adding a second supplement, and the price sits in the middle of this group rather than at the top.
Tolerance is what separated it from the rest of the set. Magnesium has a deserved reputation for loose stools and middle-of-the-night cramping, and this is the pick with the calmest record on that front among the six we compared. Whatever else a complex promises, it's worth nothing if you stop taking it after a week.
The bottle is the other practical argument: 300 vegan capsules is a supply measured in months, not weeks, and the formula has been sold in essentially this shape since 2004. We like that in a nightly supplement — nothing relaunched, nothing reformulated to chase a trend.
It isn't the fanciest formula on the page. There's no threonate, no added vitamin D, no ten-form pitch — just a strong dose of three forms that between them do the ordinary job well. For most people that is the entire brief.
Pros
- Three forms including well-absorbed glycinate
- 400 mg dose close to the daily value
- 300-capsule bottle lasts months
- Best tolerance record in this group
Cons
- Oxide is the least absorbable of its three forms
Our pick for most people: a near-full daily value in three well-chosen forms, backed by the steadiest digestion record in this group.