Magnesium · per 100 mg elemental
Cheaper alternatives to Thorne magnesium
Thorne costs $0.21 per 100 mg elemental. The cheapest on our list is Micro Ingredients at $0.06, 71% less. At one serving a day that is $21.90 a year instead of $76.65.
Popular brand

Thorne
Magnesium Glycinate · 180 Capsules
- Per serving
- $0.21 per 100 mg elemental
- A year, one serving a day
- $76.65
- Container
- $46.00 at Vitacost
Cheapest on our list 71% less

Micro Ingredients
Pure Magnesium Glycinate 400mg Per Serving · 240 Capsules
- Per serving
- $0.06 per 100 mg elemental
- A year, one serving a day
- $21.90
- Container
- $19.99 at Micro Ingredients
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Products that cost less per 100 mg elemental
Best value. Lowest price per serving on this list.
Micro Ingredients Pure Magnesium Glycinate 400mg Per Serving · 240 CapsulesChecked less than an hour ago
$0.06 per 100 mg elemental71% less than Thorne per 100 mg elemental
BuySave me money at Micro Ingredients (opens in a new tab)- NOW Foods Magnesium Bisglycinate Powder · 8 oz
Checked less than an hour ago
$0.06 per 100 mg elemental71% less than Thorne per 100 mg elemental
BuySave me money at Vitacost (opens in a new tab) Sale · 25% off. Piping Rock is running a sale on this size.
Piping Rock Magnesium Glycinate · 375 mg · 130 Quick Release SoftgelsChecked less than an hour ago
$0.07 per 100 mg elemental67% less than Thorne per 100 mg elemental
BuySave me money at Piping Rock (opens in a new tab)- Nutricost Magnesium Glycinate Powder · Unflavored
Checked less than an hour ago
$0.08 per 100 mg elemental62% less than Thorne per 100 mg elemental
BuySave me money at Nutricost (opens in a new tab) - Dr. Tobias Magnesium Bisglycinate
Checked less than an hour ago
$0.12 per 100 mg elemental43% less than Thorne per 100 mg elemental
BuySave me money at Dr. Tobias (opens in a new tab) - Country Life Chelated Magnesium Glycinate · 90 Tablets
Checked less than an hour ago
$0.15 per 100 mg elemental29% less than Thorne per 100 mg elemental
BuySave me money at Vitacost (opens in a new tab) - KAL High Absorption Magnesium Glycinate 350 · 160 VegCaps
Checked less than an hour ago
$0.15 per 100 mg elemental29% less than Thorne per 100 mg elemental
BuySave me money at Vitacost (opens in a new tab) - Solaray Magnesium Glycinate · 240 Veggie Capsules
Checked less than an hour ago
$0.15 per 100 mg elemental29% less than Thorne per 100 mg elemental
BuySave me money at Swanson (opens in a new tab) - MegaFood Extra Strength Magnesium Glycinate Capsules · 30 Day · 120ct
Checked less than an hour ago
$0.17 per 100 mg elemental19% less than Thorne per 100 mg elemental
BuySave me money at MegaFood (opens in a new tab) - Protocol for Life Balance Magnesium Glycinate, High Absorption · 180 Veg Capsules
Checked less than an hour ago
$0.18 per 100 mg elemental14% less than Thorne per 100 mg elemental
BuySave me money at Vitacost (opens in a new tab)
See the full magnesium list2 more cost less than Thorne
Thorne side by side
- Thorne vs Micro Ingredients magnesiumMicro Ingredients costs 71% less per 100 mg elemental than Thorne: $0.06 vs $0.21.
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Questions
What is the cheapest alternative to Thorne magnesium?
Today it is Micro Ingredients at $0.06 per 100 mg elemental, 71% less than Thorne at $0.21 on the same basis.
How is "% less" worked out?
We divide each container's price by the amount of active ingredient its label says it holds, then compare that price per 100 mg elemental. It is our comparison, not a store sale. The store sets the price at checkout.
Is a cheaper magnesium the same as Thorne?
We compare the labeled amount of the active ingredient, not quality, taste or testing. Each row shows any third-party testing we found. We don't test products and don't tell you what to take.
Magnesium buying guides
- Best magnesium glycinate 2026: top 5 per 100 mg elementalThe best-value magnesium glycinate right now, ranked by cost per 100 mg of elemental magnesium, plus the best powder and softgel and the label traps to avoid.
- Magnesium glycinate vs citrate: which one for sleep, stress or constipation?Glycinate is gentle on the gut; citrate absorbs well but loosens stools. How they compare on elemental magnesium, side effects, uses and price per 100 mg.
- Magnesium glycinate: elemental dose, label tricks, and how much for sleep1,000 mg of magnesium glycinate gives about 140 mg of elemental magnesium (14%). How to find the elemental dose on a label and spot oxide blends.
We show prices. We don't sell the products or tell you what to take. How we compare · Disclaimer









