Best Magnesium Mineral Supplements Under $100 (2026)
Selections were ranked by a combined value score that weighed formulation (bioavailable magnesium forms), dose per serving, user ratings, and price under $100
This roundup covers magnesium mineral supplements under $100 chosen for value, formulation diversity, and user-rated effectiveness. Picks prioritize bioavailable magnesium forms, clear labeling of dose and serving size, and products with consistent third-party ratings
Top Picks
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1
Magnesium (Citrate) supplement for sleep & health
Magnesium citrate capsules supporting neuromuscular function, energy metabolism, and bone health. Customers report improved sleep, energy, and relaxation
- magnesium citrate support for sleep and energy
- positive customer-reported sleep & relaxation
- easy-to-swallow capsules
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2
Nature Made Magnesium 400 mg 150 Softgels (Pack of 2)
Magnesium supplement supporting nerve, heart and muscle function and energy formation. Noted for muscle cramp relief and overall effectiveness, with some customers mentioning an ammonia-like smell
- 400 mg magnesium per softgel
- supports multiple bodily functions
- pack of two bottles
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3
MagicMag C Magnesium Citrate with Potassium
Magnesium citrate supplement with potassium for muscle relaxation, calm mood, sleep quality, and electrolyte support. Customers report ease of swallowing and perceived value
- magnesium citrate with potassium
- sleep and muscle support
- easy-to-swallow capsules
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4
Magnesium citrate 500 mg + oxide 120ct for calm & digestion
Magnesium supplement combining citrate and oxide for calm, muscle function, and digestion support. Customers note quick effects, improved sleep, and relaxation
- 500 mg magnesium per capsule
- dual-form magnesium for balance
- highly soluble citrate form
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5
NaturalSlim MagicMag Magnesium Citrate Powder
Magnesium citrate blend with support for rest, general health, and daily vitality. Delivers a fruity strawberry-lime flavor and can be brewed cold or warm; customers note it aids sleep and constipation relief
- magnesium citrate-based blend
- strawberry-lime flavor
- supports sleep and general health
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6
NaturalSlim MagicMag Magnesium Citrate Powder 8oz (2 pack) honey chamomile flavor
Magnesium citrate powder with citric acid and carbonate for gentler digestion and better rest. Customers note pleasant honey sweetness, relaxation, and improved sleep
- stacks magnesium citrate with carbonate for absorption
- flavor-variety options
- supports sleep and vitality
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7
Innate Vitality Magnesium Glycinate 500mg – 240 vegan capsules
Chelated magnesium glycinate supplement for nerve and heart support. Noted for aiding sleep, relaxation, and muscle recovery; easy-to-swallow vegetarian capsules
- chelated magnesium glycinate 500mg
- free from common allergens
- long capsule count (240)
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8
Chelated Magnesium Glycinate 500mg Capsules - 960 capsules
Chelated magnesium glycinate capsules for high absorption and gentle digestion. Supports calm, muscle relaxation, and may aid sleep; customers note improved sleep quality and relief from muscle aches
- 500 mg elemental magnesium per capsule
- vegan, bioavailable form
- two bottles per package
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9
Magnesium Glycinate 500mg with Vitamin C (480 capsules) NatureBell
Chelated magnesium glycinate with fat-soluble vitamin C per capsule. 480 veggie capsules, one-a-day formula for extended supply; supports sleep, muscle relaxation, and digestion. Customer note: effective sleep within 25-40 minutes
- one-a-day formula
- 40mg fat-soluble vitamin C per capsule
- no fillers, 480 capsules
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10
Mag-Ox Magnesium Oxide 483mg, 120 tablets (pack of 3)
Magnesium oxide supplement delivering 482mg per 2-tablet dose to support energy metabolism and muscle function. Customers report relief from cramps and improved sleep quality, with easy-to-swallow tablets
- high magnesium per dose
- customer-reported cramp relief
- supports energy conversion