The buyer question · week of Nov 2 – 8

Best Magnesium Supplements Ranking

Picked by AI, checked by people.

The weekly chart ?

The top 20 products brands right now.

Product chart

Tap a card for each AI’s place and the monthly check.

  1. #1same place as last weekMagnesium BisglycinateThorneAlso #1 Supplements & Nutrition · #1 Sleep & Recovery · +2Last week #1 · 17 weeks in top 20

    AI places · this week ?

    1. GPT#1
    2. Claude#2
    3. Gemininot named
    4. AI Modenot named
    5. Grok#1
    6. Perplexity#2

    named by 4/6

    The card’s #1 is the 4-week average.

    People · October 2026 check ?

    • Buyers’ rating4.51,305 ratings · Oct 2026
  2. #2up 1 place since last weekNeuro-Mag® Magnesium L-ThreonateLife ExtensionMonthly check: Passes the checkAlso #5 Daily Wellness · #11 Supplements & NutritionLast week #3 · 15 weeks in top 20

    AI places · this week ?

    1. GPT#3
    2. Claude#6
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexity#6

    named by 3/6

    The card’s #2 is the 4-week average.

    People · October 2026 check ?

    • Passes the check · buyers rate it highly ?
    • Buyers’ rating4.817,028 ratings · Oct 2026
  3. #3down 1 place since last weekMagnesium (Glycinate)Pure EncapsulationsAlso #7 Best Sleep Supplements · #8 Daily Wellness · +1Last week #2 · 20 weeks in top 20

    AI places · this week ?

    1. GPT#2
    2. Claudenot named
    3. Gemini#2
    4. AI Modenot named
    5. Groknot named
    6. Perplexity#4

    named by 3/6

    The card’s #3 is the 4-week average.

    People · October 2026 check ?

    • Buyers’ rating4.84,256 ratings · Oct 2026
    • Owners’ threads: widespread, serious failures0serious failures · 9 threads read · Oct 2026
    • Press2/3outlets recommend · 0 with more cons than pros · Jul 2026
    Evidence
    Check evidence
    Frozen October 29, 2026
    Press · 3 publications
    • ConsumerLab.comMixed · Date not savedOriginal
    • HealthlineRecommends · Date not savedOriginal
    • Medical News TodayRecommends · Date not savedOriginal
    Owners

    9 threads read · 0 serious failure themes

  4. #4same place as last weekHigh Absorption Magnesium Glycinate LysinateDoctor's BestAlso #6 Best Sleep SupplementsLast week #4 · 20 weeks in top 20

    AI places · this week ?

    1. GPT#5
    2. Claudenot named
    3. Gemini#3
    4. AI Modenot named
    5. Groknot named
    6. Perplexity#26

    named by 3/6

    The card’s #4 is the 4-week average.

    People · October 2026 check ?

    • Buyers’ rating4.9275 ratings · Jul 2026

    Also in the top 20 of ?

  5. #5same place as last weekMagnesium (Glycinate)NOW FoodsMonthly check: Passes the checkLast week #5 · 16 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claudenot named
    3. Gemini#5
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 1/6

    The card’s #5 is the 4-week average.

    People · October 2026 check ?

    • Passes the check · buyers rate it highly ?
    • Buyers’ rating4.830,726 ratings · Oct 2026
  6. #6up 7 places since last weekKlean MagnesiumKlean Athletenot checkedLast week #13 · 13 weeks in top 20

    AI places · this week ?

    1. GPT#7
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexity#14

    named by 2/6

    The card’s #6 is the 4-week average.

    Not in the October 2026 check ?

  7. #7same place as last weekPure Encapsulations Magnesium Glycinate CapsulesPure Encapsulationsnot checkedLast week #7 · 4 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claude#3
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 1/6

    The card’s #7 is the 4-week average.

    Not in the October 2026 check ?

  8. #8up 6 places since last weekMagnesium Oxide 250 mg TabletsNature Madenot checkedLast week #14 · 2 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claude#5
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 1/6

    The card’s #8 is the 4-week average.

    Not in the October 2026 check ?

  9. #9up 2 places since last weekMagnesium Bisglycinate CapsulesThornenot checkedLast week #11 · 3 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 0/6

    The card’s #9 is the 4-week average.

    Not in the October 2026 check ?

  10. #10down 1 place since last weekMagnesium CitrateSolgarLast week #9 · 13 weeks in top 20

    AI places · this week ?

    1. GPT#19
    2. Claudenot named
    3. Gemini#14
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 2/6

    The card’s #10 is the 4-week average.

    People · October 2026 check ?

    • Buyers’ rating4.78,085 ratings · Aug 2026
  11. #11up 1 place since last weekHigh Absorption Magnesium Glycinate Lysinate TabletsDoctor's Bestnot checkedLast week #12 · 2 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 0/6

    The card’s #11 is the 4-week average.

    Not in the October 2026 check ?

  12. #12up 11 places since last weekMagnesium OptimizerJarrow FormulasRe-entryLast week #23 · 10 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claude#8
    3. Gemini#7
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 2/6

    The card’s #12 is the 4-week average.

    People · October 2026 check ?

    • Buyers’ rating4.861 ratings · Jul 2026
  13. #13up 2 places since last weekMagnesium (Glycinate)Nature Madenot checkedLast week #15 · 6 weeks in top 20

    AI places · this week ?

    1. GPT#6
    2. Claudenot named
    3. Gemini#16
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 2/6

    The card’s #13 is the 4-week average.

    Not in the October 2026 check ?

  14. #14down 4 places since last weekMagnesium Buffered ChelateDesigns for Healthnot checkedLast week #10 · 18 weeks in top 20

    AI places · this week ?

    1. GPT#10
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 1/6

    The card’s #14 is the 4-week average.

    Not in the October 2026 check ?

  15. #15up 15 places since last weekNeuro-Mag Magnesium L-Threonate 2026Life ExtensionDebutBiggest climbnot checkedLast week #30 · 1 week in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Grok#5
    6. Perplexitynot named

    named by 1/6

    The card’s #15 is the 4-week average.

    Not in the October 2026 check ?

  16. #16up 2 places since last weekMagnesium CitrateNature Madenot checkedLast week #18 · 2 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 0/6

    The card’s #16 is the 4-week average.

    Not in the October 2026 check ?

  17. #17up 7 places since last weekNutricost Magnesium Citrate PowderNutricostRe-entrynot checkedLast week #24 · 3 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexity#9

    named by 1/6

    The card’s #17 is the 4-week average.

    Not in the October 2026 check ?

  18. #18down 12 places since last weekMagnesium CitrateNOW FoodsLast week #6 · 16 weeks in top 20

    AI places · this week ?

    1. GPT#18
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 1/6

    The card’s #18 is the 4-week average.

    People · October 2026 check ?

    • Buyers’ rating4.828,963 ratings · Oct 2026
  19. #19up 2 places since last weekMagnesium BisglycinateTransparent LabsRe-entrynot checkedLast week #21 · 2 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexity#13

    named by 1/6

    The card’s #19 is the 4-week average.

    Not in the October 2026 check ?

  20. #20down 1 place since last weekMagnesium CitratePure Encapsulationsnot checkedLast week #19 · 4 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexity#20

    named by 1/6

    The card’s #20 is the 4-week average.

    Not in the October 2026 check ?

Dropped out of the top 20 ?

Show places 21–100Hide places 21–100
  1. #21Magnesium Citrate TabletsSolgar · last wk #35 0 wks in top 20
  2. #22Magnesium Glycinate ComplexKlaire Labs · last wk #8 19 wks in top 20
  3. #23Mag GlycinateMetagenics · last wk #28 0 wks in top 20
  4. #24High Absorption Magnesium Glycinate 200 mgNature Made · last wk #25 0 wks in top 20
  5. #25Dr. Formulated MagnesiumGarden of Life · last wk #17 15 wks in top 20
  6. #26Momentous Magnesium L-Threonate (Magtein)Momentous · last wk #43 0 wks in top 20
  7. #27Neuro-Mag Magnesium L-Threonate CapsulesLife Extension · last wk #32 0 wks in top 20
  8. #28Magnesium Citrate 200 mg TabletsNOW Foods · last wk #47 0 wks in top 20
  9. #29Magnesium Glycinate 200 mgNature Made · last wk #20 6 wks in top 20
  10. #30Magnesium 500 mg TabletsNature's Bounty · last wk #69 0 wks in top 20
  11. #31Dr. Formulated Magnesium 2026Garden of Life · last wk #50 1 wk in top 20
  12. #32Optimal MagnesiumSeeking Health · last wk #31 1 wk in top 20
  13. #33MegaFood Magnesium CapsulesMegaFood · last wk #60 0 wks in top 20
  14. #34Magnesium Optimizer 2025Jarrow Formulas · last wk #82 0 wks in top 20
  15. #35Calm Magnesium SupplementNatural Vitality · last wk #37 0 wks in top 20
  16. #36Magnesium Optimizer TabletsJarrow Formulas · last wk #38 0 wks in top 20
  17. #37High Absorption Magnesium 2026Doctor's Best · last wk #86 0 wks in top 20
  18. #38Magnesium (Glycinate)KAL · last wk #34 1 wk in top 20
  19. #39Magnesium Bisglycinate PowderNOW Foods · last wk #94 5 wks in top 20
  20. #40Calm Magnesium Citrate Powder (Original)Natural Vitality · last wk #40 0 wks in top 20
  21. #41Pure Encapsulations Magnesium Citrate CapsulesPure Encapsulations · last wk — 0 wks in top 20
  22. #42Target-Mins MagnesiumCountry Life · last wk #49 0 wks in top 20
  23. #43MagSRTJigsaw Health · last wk #22 6 wks in top 20
  24. #44Ritual Magnesium+Ritual · last wk #45 0 wks in top 20
  25. #45Nordic Naturals Magnesium GlycinateNordic Naturals · last wk — 0 wks in top 20
  26. #46Magnesium (Glycinate)Sports Research · last wk #27 3 wks in top 20Passes the check
  27. #47Magnesium L-ThreonateMomentous · last wk — 6 wks in top 20Passes the check
  28. #48Magnesium CapsLife Extension · last wk #16 15 wks in top 20
  29. #49Bluebonnet Nutrition Chelated Magnesium GlycinateBluebonnet Nutrition · last wk #51 0 wks in top 20
  30. #50Double Wood Magnesium MalateDouble Wood · last wk — 0 wks in top 20
  31. #51Dr. Formulated Magnesium PowderGarden of Life · last wk — 0 wks in top 20
  32. #52High Absorption Magnesium Glycinate 200 mg CapsulesNature Made · last wk — 0 wks in top 20
  33. #53High Absorption Magnesium Glycinate Lysinate Chelated 200 mgDoctor's Best · last wk — 0 wks in top 20
  34. #54Calm Magnesium PowderNatural Vitality · last wk #42 1 wk in top 20
  35. #55Magnesium Glycinate 400KAL · last wk #26 5 wks in top 20
  36. #56Magnesium Glycinate 500mg Gen5Pure Encapsulations · last wk — 0 wks in top 20
  37. #57High Absorption Magnesium Glycinate 100% ChelatedDoctor's Best · last wk #55 0 wks in top 20
  38. #58Magnesium Glycinate 400mg CapsulesPure Encapsulations · last wk #56 0 wks in top 20
  39. #59Momentous Magnesium L-Threonate CapsulesMomentous · last wk #57 0 wks in top 20
  40. #60Ritual Magnesium+ PowderRitual · last wk — 0 wks in top 20
  41. #61Magnesium Glycinate 2026 FormulaPure Encapsulations · last wk #59 0 wks in top 20
  42. #62High Absorption Magnesium 2025 Glycinate LysinateDoctor's Best · last wk #62 0 wks in top 20
  43. #63Calm Magnesium Citrate GummiesNatural Vitality · last wk — 5 wks in top 20
  44. #64Calm Magnesium Citrate Powder Original UnflavoredNatural Vitality · last wk — 0 wks in top 20
  45. #65Magnesium Citrate Powder UltraNOW Foods · last wk — 0 wks in top 20
  46. #66High Absorption Magnesium 2025 LysinateDoctor's Best · last wk #65 0 wks in top 20
  47. #67Nested Naturals Magnesium Glycinate CapsulesNested Naturals · last wk #66 0 wks in top 20
  48. #68Relax + Calm Magnesium PowderMegaFood · last wk — 0 wks in top 20
  49. #69CALM Magnesium Citrate PowderNatural Vitality · last wk #29 15 wks in top 20
  50. #70Magnesium Glycinate 400mg UltraPure Encapsulations · last wk #68 0 wks in top 20
  51. #71NATURAL Triple Calm MagnesiumNATURAL · last wk #39 0 wks in top 20
  52. #72Magnesium L Threonate 2026 Neuro MagLife Extension · last wk #70 0 wks in top 20
  53. #73Trace Minerals Mega-Mag Liquid Ionic MagnesiumTrace Minerals · last wk — 0 wks in top 20
  54. #74Magnesium Glycinate 200mg SoftgelsNOW Foods · last wk #71 0 wks in top 20
  55. #75Magnesium Glycinate 400mg AdvancedNOW Foods · last wk #72 0 wks in top 20
  56. #76Magnesium BisglycinateThorne Research · last wk — 6 wks in top 20
  57. #77Magnesium Bisglycinate Powder 2026 EditionThorne · last wk #79 0 wks in top 20
  58. #78Magnesium Bisglycinate 2026 PowderThorne Research · last wk #78 0 wks in top 20
  59. #79Calm OriginalNatural Vitality · last wk — 0 wks in top 20
  60. #80Magnesium Glycinate 400 mg 2026 SoftgelsNOW Foods · last wk #76 0 wks in top 20
  61. #81Magnesium Caps (Magnesium Citrate, Oxide, Succinate)Life Extension · last wk #80 0 wks in top 20
  62. #82Magnesium Optimizer 2025 TabletsJarrow Formulas · last wk #81 0 wks in top 20
  63. #83Momentous Magtein Magnesium L-ThreonateMomentous · last wk #83 0 wks in top 20
  64. #84High Absorption Magnesium Lysinate GlycinateDoctor's Best · last wk #84 4 wks in top 20
  65. #85Magnesium 300mg New FormulaMegaFood · last wk — 0 wks in top 20
  66. #86Magnesi-OM PowderMoon Juice · last wk — 0 wks in top 20
  67. #87Magnesium CitramateThorne · last wk #33 2 wks in top 20
  68. #88Magnesium (Glycinate)Nested Naturals · last wk — 0 wks in top 20
  69. #89Magnesium Glycinate 350KAL · last wk #64 7 wks in top 20
  70. #90High Absorption Magnesium GlycinateNature Made · last wk #89 0 wks in top 20
  71. #91Magnesium GlycinateNutricost · last wk #41 0 wks in top 20
  72. #92Magnesium Citrate PowderNOW Foods · last wk — 2 wks in top 20
  73. #93Magnesium Glycinate PowderNOW Foods · last wk #93 0 wks in top 20
  74. #94NOW Foods Magnesium Glycinate 400 mgNOW Foods · last wk #91 0 wks in top 20
  75. #95Magnesium Optimizer 2026Jarrow Formulas · last wk #97 0 wks in top 20
  76. #96Double Wood Magnesium L-ThreonateDouble Wood · last wk #53 0 wks in top 20
  77. #97Sleep Collagen & MagnesiumVital Proteins · last wk — 0 wks in top 20
  78. #98MegaFood Magtein Magnesium L‑ThreonateMegaFood · last wk — 0 wks in top 20
  79. #99MagMind (Magnesium L-Threonate)Jarrow Formulas · last wk — 12 wks in top 20
  80. #100Magnesium Citrate SoftgelsNOW Foods · last wk #100 0 wks in top 20

Brand chart

This week ?

New #1: Life Extension, up from #2.

#1 in 1 of the last 20 weeks

2 back2 out

All 26 moves ↓

Tap a card for its products here, its price tier and other charts.

  1. #1up 1 place since last weekLife ExtensionNew #1Models here: #2 Neuro-Mag® Magnesium L-Threonate · #15 Neuro-Mag Magnesium L-Threonate 2026 · +4Last week #2 · 20 weeks in top 20
  2. #2down 1 place since last weekPure EncapsulationsModels here: #3 Magnesium (Glycinate) · #7 Pure Encapsulations Magnesium Glycinate Capsules · +6Last week #1 · 20 weeks in top 20
  3. #3same place as last weekThorneModels here: #1 Magnesium Bisglycinate · #9 Magnesium Bisglycinate Capsules · +2Last week #3 · 20 weeks in top 20
  4. #4up 1 place since last weekNOW FoodsModels here: #5 Magnesium (Glycinate) · #18 Magnesium Citrate · +10Last week #5 · 20 weeks in top 20
  5. #5down 1 place since last weekDoctor's BestModels here: #4 High Absorption Magnesium Glycinate Lysinate · #11 High Absorption Magnesium Glycinate Lysinate Tablets · +6Last week #4 · 20 weeks in top 20
  6. #6same place as last weekNature MadeModels here: #8 Magnesium Oxide 250 mg Tablets · #13 Magnesium (Glycinate) · +5Last week #6 · 20 weeks in top 20
  7. #7up 1 place since last weekJarrow FormulasModels here: #12 Magnesium Optimizer · #34 Magnesium Optimizer 2025 · +4Last week #8 · 20 weeks in top 20
  8. #8down 1 place since last weekMegaFoodModels here: #33 MegaFood Magnesium Capsules · #68 Relax + Calm Magnesium Powder · +2Last week #7 · 20 weeks in top 20
  9. #9same place as last weekGarden of LifeModels here: #25 Dr. Formulated Magnesium · #31 Dr. Formulated Magnesium 2026 · +1Last week #9 · 20 weeks in top 20
  10. #10up 2 places since last weekNatural VitalityModels here: #35 Calm Magnesium Supplement · #40 Calm Magnesium Citrate Powder (Original) · +5Last week #12 · 20 weeks in top 20
  11. #11same place as last weekSolgarModels here: #10 Magnesium Citrate · #21 Magnesium Citrate TabletsLast week #11 · 20 weeks in top 20
  12. #12up 2 places since last weekNutricostModels here: #17 Nutricost Magnesium Citrate Powder · #91 Magnesium GlycinateLast week #14 · 4 weeks in top 20
  13. #13up 3 places since last weekMomentousModels here: #26 Momentous Magnesium L-Threonate (Magtein) · #47 Magnesium L-Threonate · +2Last week #16 · 8 weeks in top 20
  14. #14down 4 places since last weekKALModels here: #38 Magnesium (Glycinate) · #55 Magnesium Glycinate 400 · +1Last week #10 · 20 weeks in top 20
  15. #15down 2 places since last weekDesigns for HealthModels here: #14 Magnesium Buffered ChelateLast week #13 · 20 weeks in top 20

    Designs for Health products here ?

    1 product in the top 100 · 1 in the top 20

    1. #14 Magnesium Buffered Chelatenot checked

    Where Designs for Health is strong · top 20 ?

  16. #16up 2 places since last weekRitualModels here: #44 Ritual Magnesium+ · #60 Ritual Magnesium+ PowderLast week #18 · 6 weeks in top 20
  17. #17up 7 places since last weekKlean AthleteRe-entryModels here: #6 Klean MagnesiumLast week #24 · 11 weeks in top 20

    Klean Athlete products here ?

    1 product in the top 100 · 1 in the top 20

    1. #6 Klean Magnesiumnot checked

    Where Klean Athlete is strong · top 20 ?

  18. #18down 1 place since last weekTrace MineralsModels here: #73 Trace Minerals Mega-Mag Liquid Ionic MagnesiumLast week #17 · 14 weeks in top 20
  19. #19down 4 places since last weekKlaire LabsModels here: #22 Magnesium Glycinate ComplexLast week #15 · 18 weeks in top 20

    Klaire Labs products here ?

    1 product in the top 100 · 0 in the top 20

    1. #22 Magnesium Glycinate Complexbelow the top 20

    Where Klaire Labs is strong · top 20 ?

  20. #20up 5 places since last weekSeeking HealthRe-entryModels here: #32 Optimal MagnesiumLast week #25 · 16 weeks in top 20

    Seeking Health products here ?

    1 product in the top 100 · 0 in the top 20

    1. #32 Optimal Magnesiumbelow the top 20

Dropped out of the top 20 ?

Show places 21–95Hide places 21–95
  1. #21Bluebonnetlast wk #32 0 wks in top 20
  2. #22Sports Researchlast wk #19 3 wks in top 20
  3. #23Solaraylast wk #20 4 wks in top 20
  4. #24Thorne Researchlast wk #36 8 wks in top 20
  5. #25Bluebonnet Nutritionlast wk #21 0 wks in top 20
  6. #26Nature's Bountylast wk #29 1 wk in top 20
  7. #27NATURALlast wk #30 0 wks in top 20
  8. #28Metagenicslast wk #22 10 wks in top 20
  9. #29Transparent Labslast wk #28 0 wks in top 20
  10. #30Nordic Naturalslast wk #26 6 wks in top 20
  11. #31Country Lifelast wk #31 2 wks in top 20
  12. #32Swansonlast wk #23 1 wk in top 20
  13. #33Double Woodlast wk #33 0 wks in top 20
  14. #34Nested Naturalslast wk #37 4 wks in top 20
  15. #35Calmlast wk #40 0 wks in top 20
  16. #36Magteinlast wk #41 0 wks in top 20
  17. #37Qunollast wk #39 0 wks in top 20
  18. #38Jigsaw Healthlast wk #27 15 wks in top 20
  19. #39BioEmblemlast wk #34 0 wks in top 20
  20. #40Vital Proteinslast wk #42 0 wks in top 20
  21. #41Ancient Nutritionlast wk #35 1 wk in top 20
  22. #42Ancient Mineralslast wk #59 0 wks in top 20
  23. #43Moon Juicelast wk #48 0 wks in top 20
  24. #44Douglas Laboratorieslast wk #45 0 wks in top 20
  25. #45New Chapterlast wk #38 0 wks in top 20
  26. #46Kirkland Signaturelast wk #43 0 wks in top 20
  27. #47Carlson Labslast wk #44 0 wks in top 20
  28. #48OLLYlast wk #54 0 wks in top 20
  29. #49Nootropics Depotlast wk #50 0 wks in top 20
  30. #50Carlsonlast wk #51 0 wks in top 20
  31. #51Bioptimizerslast wk #78 0 wks in top 20
  32. #52Source Naturalslast wk #46 4 wks in top 20
  33. #53Athletic Greenslast wk #53 0 wks in top 20
  34. #54Cymbiotikalast wk #70 0 wks in top 20
  35. #55Optimum Nutritionlast wk #56 0 wks in top 20
  36. #56BioSchwartzlast wk #49 0 wks in top 20
  37. #57Bulklast wk #57 0 wks in top 20
  38. #58Nature's Waylast wk #69 0 wks in top 20
  39. #59Zhou Nutritionlast wk #60 0 wks in top 20
  40. #60Slow-Maglast wk #73 0 wks in top 20
  41. #61Purely Inspiredlast wk #61 0 wks in top 20
  42. #62Legionlast wk #47 0 wks in top 20
  43. #63Protocol for Life Balancelast wk #58 0 wks in top 20
  44. #64Innate Responselast wk #63 0 wks in top 20
  45. #65Integrative Therapeuticslast wk #52 3 wks in top 20
  46. #66Dr Teal'slast wk #64 0 wks in top 20
  47. #67Metabolic Maintenancelast wk #66 0 wks in top 20
  48. #68Vitamaticlast wk #65 0 wks in top 20
  49. #69Performance Lablast wk #68 0 wks in top 20
  50. #70Ultimalast wk #71 0 wks in top 20
  51. #71Cardiovascular Researchlast wk — 0 wks in top 20
  52. #72ONNITlast wk — 0 wks in top 20
  53. #73LMNTlast wk #74 0 wks in top 20
  54. #74Xymogenlast wk #72 0 wks in top 20
  55. #75Vitafusionlast wk #93 0 wks in top 20
  56. #76Naturelolast wk #79 0 wks in top 20
  57. #77Kagedlast wk #80 0 wks in top 20
  58. #78Biotics Researchlast wk #75 0 wks in top 20
  59. #79Mary Ruth'slast wk — 0 wks in top 20
  60. #80MaryRuth Organicslast wk — 0 wks in top 20
  61. #81Orgainlast wk #91 0 wks in top 20
  62. #82Purelast wk #77 0 wks in top 20
  63. #83Hum Nutritionlast wk #92 0 wks in top 20
  64. #84BulkSupplements.comlast wk #94 0 wks in top 20
  65. #85MRM Nutritionlast wk #95 0 wks in top 20
  66. #86Horbäachlast wk #88 0 wks in top 20
  67. #87Orthomolecularlast wk #96 0 wks in top 20
  68. #88Nuzestlast wk #89 0 wks in top 20
  69. #89Apex Energeticslast wk #81 0 wks in top 20
  70. #90Amazing Nutritionlast wk #86 0 wks in top 20
  71. #91Snaplast wk #97 0 wks in top 20
  72. #92Renue By Sciencelast wk #90 0 wks in top 20
  73. #93Standard Processlast wk #82 0 wks in top 20
  74. #94Wellbeinglast wk #98 0 wks in top 20
  75. #95Good Statelast wk #87 0 wks in top 20

The monthly check covers products; a brand is marked “Passes the check” only when its products here pass. See the product check → ?

The AI panel ?

Where the AIs disagree.

Each AI’s place for the top 10, in its own answer this week. Rows in chart order; an empty cell: not named this week.well above the other AIs well below not named this week ?
Place on this chartProductChatGPTClaudeGeminiAI ModeGrokPerplexityNamed by
#1Magnesium Bisglycinate12124/6
#2Neuro-Mag® Magnesium L-Threonate3, well above the others663/6
#3Magnesium (Glycinate)2243/6
#4High Absorption Magnesium Glycinate Lysinate5326, well below the others3/6
#5Magnesium (Glycinate)51/6
#6Klean Magnesium7, well above the others14, well below the others2/6
#7Pure Encapsulations Magnesium Glycinate Capsules31/6
#8Magnesium Oxide 250 mg Tablets51/6
#9Magnesium Bisglycinate Capsules0/6
#10Magnesium Citrate19142/6

Further down: Perplexity’s #1 High Absorption Magnesium Glycinate 200 mg Capsules (#52 on this chart)Claude’s #1 High Absorption Magnesium Glycinate Lysinate Chelated 200 mg (#53 on this chart)Gemini’s #1 Magnesium Bisglycinate (#76 on this chart)

The AI panel ?

Where the AIs disagree.

Each AI’s place for the top 10 brands: where it put the brand’s highest-placed product this week. Rows in chart order; an empty cell: not named this week.well above the other AIs well below not named this week ?
Place on this chartBrandChatGPTClaudeGeminiAI ModeGrokPerplexityNamed by
#1Life Extension364565/6
#2Pure Encapsulations232245/6
#3Thorne1223/6
#4NOW Foods475455/6
#5Doctor's Best513326, well below the others5/6
#6Nature Made6516, well below the others9, well below the others1, well above the others5/6
#7Jarrow Formulas8763/6
#8MegaFood25, well below the others87114/6
#9Garden of Life24, well below the others12128, well above the others23, well below the others5/6
#10Natural Vitality12, well below the others4, well above the others684/6

Further down: Gemini and Grok’s #1 Thorne Research (#24 on this chart)

The monthly check · October 2026 ?

Where people agree with AI.

The check has not reached most of this chart’s top 20 yet.

  1. Life Extension Neuro-Mag® Magnesium L-ThreonatePasses the checkAI saysChart place#2named by 3 of 6People sayBuyers4.8/517,028 ratings
  2. NOW Foods Magnesium (Glycinate)Passes the checkAI saysChart place#5named by 1 of 6People sayBuyers4.8/530,726 ratings

See all checked products in the chart ↓ ?

Reviews by people · YouTube and TikTok ?

The reviews behind the chart.

19 review videos · one shown per product

3 more reviewsFewer reviews

Short clips TikTok

1 clips · 39.8K views

The data behind this chart ?

What this ranking stands on.

From the AI panel 126 AI answers over 23 weeks from 6 assistants

From people

  • Buyer ratings144,966
  • Review videos29
  • Owner threads20
  • Press outlets4
  • Recall checks23

Before you buy

Questions buyers ask.

  • Who is #1 for “Best Magnesium Supplements”, and for how long?

    Thorne Magnesium Bisglycinate is the #1 product this week, and has been #1 for 14 of the last 20 weeks. Life Extension is the #1 brand, #1 for 1 of those weeks.

  • What changed on this chart in the last four weeks?

    10 of the top 20 products were not in the top 20 four weeks ago. The #1 then was Thorne Magnesium Bisglycinate, and it is still #1. Among brands, 4 new names joined the top 20.

Data as of November 2 ?

Embed this chart

Paste this HTML into your page to show the top 10 products of this chart. The frame always shows the current chart, so it changes every week.

See the widget

Chart changes, by email.

New #1s, debuts and the picks that fail the check, from every chart. We will write only when there is news.