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  1. GNC Potassium & Magnesium Aspartate
    240 Capsules
    Price: $26.99
    Member Price: $24.99 Become a Member
  2. GNC Potassium & Magnesium
    120 Capsules
    Price: $14.99
    Member Price: $13.99 Become a Member
  3. Now® Sports ZMA®
    90 Capsules
    Price: $19.99
    Member Price: $15.99 Become a Member
  4. Natural Factors® Magnesium Citrate
    90 Capsules
    Price: $11.99
    Member Price: $9.59 Become a Member

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