How it's calculated
Price per 100 мг — the cost of 100 мг of the substance in a single product, calculated based on the ingredients listed on the label. The “Form” column indicates how well the substance’s form is absorbed. In the “By Price (Adjusted for Form)” sort, the price is divided by a form coefficient (ranging from 0.5 to 1): the poorer the form, the higher the final cost; “Best Forms” lists only the optimal forms. The table includes products with a listed price; discontinued products are excluded.
Magnesium (data on 13 October 2026)
| № | Product | Price | For 100 мг | Form |
|---|---|---|---|---|
| 1 | NOW Foods, Magnesium Oxide Pure Powder, 8 oz (227 g) | $10.71 | $0.008 | Suboptimal Formoxide |
| 2 | Vitamatic, Magnesium Aspartate Powder, 8.8 oz (250 g) | $15.74 | $0.021 | Optimal Formaspartate |
| 3 | Vitamatic, Magnesium Bisglycinate Powder, High Potency, 8.8 oz (250 g) | $15.74 | $0.021 | Optimal Formchelate/glycinate |
| 4 | Micro Ingredients, Magnesium Citrate, Unflavored, 2 lb (907 g) | $28.95 | $0.021 | Optimal Formcitrate |
| 5 | Nature's Bounty, Magnesium, High Potency, 500 mg, 200 Coated Tablets | $10.81 | $0.011 | Suboptimal Formoxide |
| 6 | Vitacost, Everyday, Magnesium, 500 mg, 180 Capsules | $10.88 | $0.012 | Suboptimal Formoxide |
| 7 | Nutricost, Magnesium Chloride, Unflavored, 32.4 oz (907 g) | $25.22 | $0.025 | Optimal Formchloride |
| 8 | Nutricost, Magnesium Citrate, Unflavored , 210 mg, 17.9 oz (500 g) | $16.95 | $0.026 | Optimal Formcitrate |
| 9 | Best Naturals, Magnesium Oxide, 500 mg , 180 Tablets | $11.99 | $0.013 | Suboptimal Formoxide |
| 10 | Vitacost, Everyday Essentials, Magnesium, 400 mg, 200 Capsules | $10.88 | $0.014 | Suboptimal Formoxide |
Magnesium Complexes (data on 13 October 2026)
| № | Product | Price | For 100 мг | Form |
|---|---|---|---|---|
| 1 | Nutricost, Magnesium Complex, 500 mg, 240 Capsules | $16.95 | $0.014 | Blend with Acceptable Formchelate/glycinate, citrate, oxide |
| 2 | Swanson Vitamins, Triple Magnesium Complex, 400 mg, 300 Vegan Capsules | $23.19 | $0.019 | Blend with Acceptable Formchelate/glycinate, citrate, oxide |
| 3 | Nature's Truth, Triple Magnesium Complex, 100 Quick Release Capsules (420 mg per Capsule) | $11.05 | $0.026 | Blend with Acceptable Formcitrate, oxide |
| 4 | Nutricost, Magnesium Complex, Regular-Strength, 250 mg, 240 Capsules | $15.95 | $0.027 | Blend with Acceptable Formchelate/glycinate, citrate, oxide |
| 5 | Sunergetic, Magnesium Complex, 500 mg, 120 Capsules | $17.80 | $0.030 | Blend with Acceptable Formcitrate, oxide |
| 6 | Nature's Way, Magnesium Complex, 100 Capsules (250 mg per Capsule) | $8.24 | $0.033 | Blend with Acceptable Formcitrate, oxide |
| 7 | Nature's Craft, Magnesium, 60 Capsules (500 mg per Capsule) | $9.99 | $0.033 | Blend with Acceptable Formcitrate, oxide |
| 8 | Forest Leaf, Advanced Magnesium Complex , 500 mg , 120 Vegetable Capsules | $20.59 | $0.034 | Blend with Acceptable Formchelate/glycinate, citrate, oxide, malate, taurate |
| 9 | Micro Ingredients, Triple Magnesium Complex, 300 Capsules (133 mg per Capsule) | $24.99 | $0.062 | Complex with Acceptable Forms
|
| 10 | Source Naturals, Ultra-Mag™, 240 Tablets | $30.27 | $0.060 | Complex with Suboptimal Form
|
Magnesium citrate (data on 13 October 2026)
| № | Product | Price | For 100 мг | Form |
|---|---|---|---|---|
| 1 | Micro Ingredients, Magnesium Citrate, Unflavored, 2 lb (907 g) | $28.95 | $0.021 | Optimal Formcitrate |
| 2 | Nutricost, Magnesium Citrate, Unflavored , 210 mg, 17.9 oz (500 g) | $16.95 | $0.026 | Optimal Formcitrate |
| 3 | Vitacost, Magnesium Citrate, 240 Tablets (200 mg per Tablet) | $16.34 | $0.034 | Optimal Formcitrate |
| 4 | Best Naturals, Magnesium Citrate, 250 Tablets (200 mg per Tablet) | $17.21 | $0.034 | Optimal Formcitrate |
| 5 | NOW Foods, Magnesium Citrate Pure Powder, 8 oz (227 g) | $12.24 | $0.036 | Optimal Formcitrate |
| 6 | Life Extension, Magnesium Caps, 500 mg, 100 Vegetarian Capsules | $9.00 | $0.018 | Blend with Acceptable Formcitrate, oxide, succinate |
| 7 | Swanson Vitamins, 100% Pure Magnesium Citrate Powder, Unflavored, 8.6 oz (244 g) | $14.21 | $0.039 | Optimal Formcitrate |
| 8 | NOW Foods, Magnesium Citrate, 200 mg, 250 Tablets | $19.99 | $0.040 | Optimal Formcitrate |
| 9 | Nutricost, Magnesium Citrate, Unflavored, 8.9 oz (250 g) | $14.95 | $0.043 | Optimal Formcitrate |
| 10 | Vitacost, Magnesium Citrate, 120 Tablets (200 mg per Tablet) | $11.20 | $0.047 | Optimal Formcitrate |
Magnesium glycinate (data on 13 October 2026)
| № | Product | Price | For 100 мг | Form |
|---|---|---|---|---|
| 1 | Vitamatic, Magnesium Bisglycinate Powder, High Potency, 8.8 oz (250 g) | $15.74 | $0.021 | Optimal Formchelate/glycinate |
| 2 | Best Naturals, Magnesium Glycinate Powder, 1 lb (454 g) | $21.51 | $0.040 | Optimal Formchelate/glycinate |
| 3 | Vitamatic, Magnesium Glycinate Powder, 8.8 oz (250 g) | $14.99 | $0.020 | Blend with Acceptable Formchelate/glycinate, oxide |
| 4 | Micro Ingredients, Magnesium Glycinate, 240 Vegetarian Capsules (175 mg per Capsule) | $19.99 | $0.048 | Optimal Formchelate/glycinate |
| 5 | Vitacost, Chelated Magnesium, 180 Tablets | $17.59 | $0.049 | Optimal Formchelate/glycinate |
| 6 | Micro Ingredients, Potassium Magnesium, 300 Capsules | $19.99 | $0.048 | Complex with Acceptable Forms
|
| 7 | Qunol, Magnesium, 180 Capsules (210 mg per Capsule) | $21.00 | $0.056 | Optimal Formchelate/glycinate |
| 8 | Qunol, Magnesium, 120 Capsules (210 mg per Capsule) | $15.00 | $0.060 | Optimal Formchelate/glycinate |
| 9 | Nutricost, Magnesium Glycinate, Unflavored , 8.9 oz (250 g) | $19.95 | $0.068 | Optimal Formchelate/glycinate |
| 10 | Micro Ingredients, Pure Magnesium Glycinate, 240 Capsules | $19.99 | $0.062 | Complex with Acceptable Forms
|
Magnesium L-threonate (data on 8 October 2026)
Magnesium malate (data on 13 October 2026)
Magnesium oxide (data on 13 October 2026)
| № | Product | Price | For 100 мг | Form |
|---|---|---|---|---|
| 1 | NOW Foods, Magnesium Oxide Pure Powder, 8 oz (227 g) | $10.71 | $0.008 | Suboptimal Formoxide |
| 2 | Vitacost, Everyday, Magnesium, 500 mg, 180 Capsules | $10.88 | $0.012 | Suboptimal Formoxide |
| 3 | Best Naturals, Magnesium Oxide, 500 mg , 180 Tablets | $11.99 | $0.013 | Suboptimal Formoxide |
| 4 | Vitacost, Everyday Essentials, Magnesium, 400 mg, 200 Capsules | $10.88 | $0.014 | Suboptimal Formoxide |
| 5 | 21st Century, Magnesium, 250 Tablets | $8.79 | $0.014 | Suboptimal Formoxide |
| 6 | Nutricost, Magnesium Oxide , 750 mg , 240 Capsules | $14.95 | $0.015 | Suboptimal Formoxide |
| 7 | Life Extension, Magnesium Caps , 500 mg, 100 Vegetarian Capsules | $9.00 | $0.018 | Blend with Acceptable Formoxide, carbonate |
| 8 | Life Extension, Magnesium Caps, 500 mg, 100 Vegetarian Capsules | $9.00 | $0.018 | Blend with Acceptable Formcitrate, oxide, succinate |
| 9 | Swanson Vitamins, Magnesium Oxide, 200 mg, 500 Vegan Capsules | $18.99 | $0.019 | Suboptimal Formoxide |
| 10 | Sundance Vitamins, Ultra Magnesium, 500 mg, 200 Vegan Coated Caplets | $19.49 | $0.019 | Suboptimal Formoxide |
Children's magnesium (data on 8 October 2026)
Prices are in U.S. dollars; shipping to U.S.. Items that are not available in the country, as well as items that are out of stock or for which no restock date is available, are not included in the table.