| Magnesium L-Threonate 2100 mg | Swiss BioEnergetics | 2100 mg | — | Capsule |
| Oxy Clenz 750 mg | Biophix | 1809 mg | 431% | Capsule |
| Magnesium Malate 1500 mg | Double Wood Supplements | 1500 mg | — | Capsule |
| Oxy-Powder | Global Healing Center | 1400 mg | 350% | Capsule |
| Magnesium Malate 1350 mg | NusaPure | 1350 mg | 64% | Capsule |
| High Absorbtion Magnesium | Everyday Health | 1200 mg | 56% | Capsule |
| Cal-Mag Citrate 1:1 ratio | Solaray | 1000 mg | 238% | Capsule |
| Magnesium Orotate 500 mg | Advanced Research | 1000 mg | 15% | Tablet or Pill |
| CogniMag | Pure Encapsulations | 1000 mg | — | Capsule |
| Magnesium Oxide 1000 mg | NusaPure | 1000 mg | 144% | Capsule |
| Cal-Mag Citrate | Solaray | 1000 mg | 250% | Capsule |
| Detox Activation Cleansing Formula | Nature's Way | 903 mg | 215% | Tablet or Pill |
| GlycoLoad Grape | Metabolic Nutrition | 900 mg | 225% | Powder |
| GlycoLoad Green Apple | Metabolic Nutrition | 900 mg | 225% | Powder |
| Magnesium Citrate 833 mg | NusaPure | 833 mg | 29% | Capsule |
| Magnesium Citrate 800 mg | tnvitamins | 800 mg | — | Capsule |
| Magnesium & Calcium | NOW | 800 mg | 190% | Tablet or Pill |
| Calm Magnesium Caps | California Academy of Health | 800 mg | 200% | Capsule |
| Magnesium Serene Tangerine & Fruit Medley | Source Naturals | 800 mg | 200% | Liquid |
| Magnesium Citrate 800 mg | Double Wood Supplements | 800 mg | — | Capsule |
| Magnesium L-Threonate 800 mg | Barlowe's Herbal Elixirs | 800 mg | — | Capsule |
| Raw Cleanse Digestion & Elimination | Garden of Life | 800 mg | 190% | Powder |
| Digestion & Elimination | Garden of Life | 800 mg | 190% | Powder |
| Bone | Viva Vitamins | 800 mg | 200% | Tablet or Pill |
| Magnesium Serene Tangerine Flavor | Source Naturals Serene Science | 800 mg | 200% | Powder |
| Magnesium Oxide | Earthborn Elements | 760 mg | — | Capsule |
| PowerCal 1000 mg | Advanced Nutrition by Zahler | 750 mg | 179% | Tablet or Pill |
| Bone Support With Ostivone | Twinlab | 750 mg | 188% | Tablet or Pill |
| Ostivone Plus | OL Olympian Labs | 750 mg | 188% | Tablet or Pill |
| Laxative Formula | Integrative Therapeutics | 722 mg | 172% | Tablet or Pill |
| Laxative-3 Blend | Nature's Way | 722 mg | 172% | Tablet or Pill |
| Liquid Calcium Magnesium | Tropical Oasis | 720 mg | 25% | Liquid |
| Liquid Calcium Magnesium Orange Flavor | Tropical Oasis | 720 mg | 25% | Liquid |
| Magnesium BHB 7 g Unflavored | Nutricost | 700 mg | 170% | Powder |
| Amino Restore Natural Vanilla Flavor | Taylor MD Formulations | 673 mg | 168% | Powder |
| Amino Restore Natural Choclate Flavor | Taylor MD Formulations | 673 mg | 168% | Powder |
| Elite Athlete | Cooper Complete | 660 mg | 165% | Tablet or Pill |
| Magnesium Citrate Powder Unflavored | Swanson | 630 mg | 150% | Powder |
| Dolomite Powder | KAL | 630 mg | 158% | Powder |
| Bone Health Pack | Douglas Laboratories | 625 mg | 156% | Other (e.g. tea bag) |
| Senior Women's Pack | Douglas Laboratories | 625 mg | 156% | Other (e.g. tea bag) |
| Mag Relax | VitaCeutical Labs | 615 mg | 150% | Powder |
| Mag Relax | Woodstock Vitamins | 615 mg | 146% | Powder |
| High Potency Multi Pack | Vitamer Laboratories | 600 mg | 150% | Other (e.g. tea bag) |
| Liquid Cal/Mag/Zinc Natural Pina Colada Flavor | Trace Minerals | 600 mg | 143% | Liquid |
| Remove | Garden of Life | 600 mg | 150% | Capsule |
| Cal/Mag/Zinc Pina Colada Flavor | Trace Minerals Research | 600 mg | 150% | Liquid |
| MigraPlex | Karuna | 600 mg | 150% | Capsule |
| Ultra Bone Balance | Source Naturals | 600 mg | 150% | Tablet or Pill |
| Tranquil Day Delicious Lemon Flavor | Windmill Health Products | 600 mg | 150% | Powder |
| Cal/Mag/Vit D3 with Vitamin K2 Vanilla | NaturesPlus | 600 mg | 143% | Tablet or Pill |
| Liquid Cal/Mag/Zinc Natural Strawberry Flavor | Trace Minerals | 600 mg | 143% | Liquid |
| Cal/Mag/Zinc Strawberry | Trace Minerals Research | 600 mg | 150% | Liquid |
| Bio-Calm | MBi Nutraceuticals | 600 mg | 150% | Capsule |
| Magnesium Potassium Aspartate | Country Life Target-Mins | 600 mg | 143% | Tablet or Pill |
| Coral Calcium Multi-Mineral Complex | Source Naturals | 600 mg | 150% | Tablet or Pill |
| GlycoLoad Unflavored | Metabolic Nutrition | 600 mg | 150% | Powder |
| OsteoSheath | Vinco | 600 mg | 150% | Tablet or Pill |
| Gynovite Plus | Optimox | 600 mg | 143% | Tablet or Pill |
| High Potency Multi Pack | VitaCeutical Labs | 600 mg | 150% | Other (e.g. tea bag) |
| Bio-Osteo | MBi Nutraceuticals | 600 mg | 150% | Capsule |
| Osteo-Genics | Metagenics | 600 mg | 150% | Tablet or Pill |
| Calcium Magnesium Citrate With Vitamin D3 Natural Strawberry Flavor | Vitamin World | 600 mg | 150% | Liquid |
| Cal/Mag/Zinc Strawberry Flavor | Trace Minerals Research | 600 mg | 150% | Liquid |
| Re-Built Mass XP Chocolate | GNC Beyond Raw | 600 mg | 143% | Powder |
| OsteoSheath 4 | Vinco | 600 mg | 143% | Tablet or Pill |
| Calcium Complex (MCHA) | IVL Institute For Vibrant Living | 600 mg | 150% | Capsule |
| Liqui-Cal | MBi Nutraceuticals | 600 mg | 150% | Liquid |
| Cal/Mag/Vit D3 with Vitamin K2 | NaturesPlus | 600 mg | 143% | Tablet or Pill |
| Ultra Preventive Forte-Chel | Douglas Laboratories | 600 mg | 150% | Tablet or Pill |
| Cal-Mag+ | MBi Nutraceuticals | 600 mg | 150% | Liquid |
| Cal/Mag/Zinc Natural Pina Colada Flavor | Trace Minerals Research | 600 mg | 150% | Liquid |
| MigraMAXX | Karuna | 600 mg | 150% | Capsule |
| Perfect Cleanse Remove | Garden of Life | 600 mg | 143% | Capsule |
| Ultra Preventive Forte-Chel (Capsules) | Douglas Laboratories | 600 mg | 150% | Capsule |
| Capsule Packet | Nature's Sunshine | 600 mg | 143% | Capsule |
| Calcium Zinc Magnesium Plus Copper | Universal Nutrition / Universal Naturals | 600 mg | 150% | Tablet or Pill |
| Maximum Bone-Aid | Viva Vitamins | 600 mg | 143% | Other (e.g. tea bag) |
| Re-Built Mass XP Strawberry | GNC Beyond Raw | 580 mg | 138% | Powder |
| Living Calcium Advanced | Garden of Life | 575 mg | 137% | Other (e.g. tea bag) |
| Calcium Citrate plus Magnesium & Vitamin D | The Vitamin Shoppe | 567 mg | 135% | Capsule |
| Calcium Complex and Magnesium | Bronson Laboratories | 561 mg | 134% | Tablet or Pill |
| Calcium Complex And Magnesium | Bronson | 561 mg | 134% | Tablet or Pill |
| Re-Built Mass XP Cookies & Cream | GNC Beyond Raw | 540 mg | 129% | Powder |
| Marine Magnesium with Potassium | Xtendlife | 530 mg | 126% | Capsule |
| Re-Built Mass XP Vanilla | GNC Beyond Raw | 510 mg | 121% | Powder |
| Vitamin Essentials | Sundown Naturals | 510 mg | 128% | Unknown |
| Magnesium Complex A.M. 500 mg | The Vitamin Shoppe | 500 mg | 119% | Tablet or Pill |
| Genuine Phillips' Laxative Caplets | Bayer Phillips' | 500 mg | 125% | Other (e.g. tea bag) |
| Super Potency Magnesium 500 mg | Wonder Laboratories | 500 mg | 125% | Tablet or Pill |
| Magnesium Oxide Powder 835 mg | BulkSupplements.com | 500 mg | 119% | Powder |
| Magnesium 500 mg | Full Life | 500 mg | 119% | Tablet or Pill |
| Cal/Mag 2 Go | OL Olympian Labs | 500 mg | 125% | Powder |
| Cal-Mag Citrate Complex | Village Vitality | 500 mg | 125% | Tablet or Pill |
| Added Protection III | Douglas Laboratories | 500 mg | 125% | Tablet or Pill |
| Vegetarian Cal-Mag Citrate Complex With Vitamin D3 | VitaCeutical Labs | 500 mg | 125% | Tablet or Pill |
| Calcium 1,000 mg Magnesium 500 mg Zinc 50 mg with L-Glutamic Acid | Country Life | 500 mg | 119% | Tablet or Pill |
| Magnesium 500 mg | Bronson Basics | 500 mg | 119% | Tablet or Pill |
| Calcium Magnesium Vitamin D3 | Puritan's Pride | 500 mg | 119% | Other (e.g. tea bag) |
| Cal/Mag Plus | OL Olympian Labs The Optimal Blend | 500 mg | 125% | Powder |