The short answer · Magnesium status
Take magnesium citrate for magnesium status. This is the one to buy.

NOW Foods, Magnesium Citrate Pure Powder, 8 oz (227 g)
4.6· 9,843 ratings· $0.16/serving
Magnesium Citrate 450 mg — inside the studied 200-500 mg window
Of 3,590 products scored for Magnesium status, NOW Foods, Magnesium Citrate Pure Powder, 8 oz (227 g) ranks #1 with a DoseRank score of 86. Magnesium Citrate is the strongest evidence signal for this outcome.
Retailer links may be affiliate links. Rankings and placement are never paid.
The form“Why Magnesium Citrate — not Magnesium Bisglycinate or Magnesium Glycinate?”Evidence Strong evidence
Magnesium Citrate is the strongest evidence signal for this outcome.
- Magnesium CitrateThe pick
Strong evidence · 450 mg
Well-absorbed magnesium bound to citric acid; more bioavailable than oxide but mildly laxative at higher doses — the common workhorse for general repletion.
- Magnesium Bisglycinate
Strong evidence · 300 mg
Chelated magnesium bound to glycine. Best-absorbed common form and gentle on digestion - the default first pick for sleep latency.
- Magnesium Glycinate
Strong evidence · 350 mg
Magnesium chelated to glycine (the bisglycinate chelate); well-absorbed and gentle on digestion, a popular form for relaxation and sleep support.
The dose“Is the dose actually effective?”Dose fit 86
Magnesium Citrate at 450 mg lands inside the studied 200-500 mg window.
Magnesium Citrate
Studied window 200-500 mg · this pick 450 mg
The ranking“Why should I trust this pick?”Trust 90
Strong trust signals — consistently high marks from verified buyer ratings. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.
- 3,590 products scored
- Never paid placement
- Evidence level: Strong · 92
- 364 brands
- 20 ingredients
The price“Can I do better than $0.16 a serving?”Value 75
$0.16 per serving — mid price tier for this outcome. The cheapest ranked pick here is $0.13 per serving.
- 4Nutricost, Magnesium Glycinate, Unflavored , 8.9 oz (250 g)Score 86 · $0.13/servingiHerb
- 10Micro Ingredients, Magnesium Glycinate, 240 Vegetarian Capsules (175 mg per Capsule)Score 85 · $0.15/servingiHerb
Why not the absolute cheapest? The DoseRank score also weighs clinical strength, evidence, dose fit and trust — the very cheapest listings rarely hold up everywhere else.
Ready?
The #1 pick is $0.16 a serving.NOW Foods, Magnesium Citrate Pure Powder, 8 oz (227 g) — in stock at a tracked retailer.
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NOW Foods, Magnesium Citrate Pure Powder, 8 oz (227 g) ranks #1 for Magnesium status with a DoseRank score of 86. The score blends clinical strength, evidence, dose fit, trust signals and value across 3,590 products scored for this outcome.