DOSERANKEVIDENCE-BASED SUPPLEMENTS© 2026 DoseRank · Evidence-based supplements
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DOSERANKEVIDENCE-BASED SUPPLEMENTSFull analysis

The short answer · Bowel regularity

Take magnesium citrate for bowel regularity. This is the one to buy.

NOW Foods, Magnesium Citrate, 200 mg, 250 Tablets
1

NOW Foods, Magnesium Citrate, 200 mg, 250 Tablets

4.8· 21,355 ratings· $0.19/serving

DoseRank score86

Magnesium Citrate 400 mg — inside the studied 250-500 mg window

Of 2,488 products scored for Bowel regularity, NOW Foods, Magnesium Citrate, 200 mg, 250 Tablets ranks #1 with a DoseRank score of 86. Magnesium Citrate is the strongest evidence signal for this outcome.

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The form“Why Magnesium Citrate — not Triphala?”Evidence Strong evidence

Magnesium Citrate is the strongest evidence signal for this outcome.

  • Magnesium CitrateThe pick

    Strong evidence · 400 mg

    Well-absorbed magnesium bound to citric acid; more bioavailable than oxide but mildly laxative at higher doses — the common workhorse for general repletion.

  • Triphala

    Moderate evidence · 1 g

    Ayurvedic three-fruit blend (amalaki, bibhitaki, haritaki); traditionally used as a digestive tonic and gentle laxative with antioxidant properties.

Buy the #1 pick
The dose“Is the dose actually effective?”Dose fit 81

Magnesium Citrate at 400 mg lands inside the studied 250-500 mg window.

Questions

Frequently asked

NOW Foods, Magnesium Citrate, 200 mg, 250 Tablets ranks #1 for Bowel regularity with a DoseRank score of 86. The score blends clinical strength, evidence, dose fit, trust signals and value across 2,488 products scored for this outcome.

Magnesium Citrate is the strongest evidence signal for this outcome.

Magnesium Citrate at 400 mg lands inside the studied 250-500 mg window. DoseRank scores this product's dose fit at 81 out of 100.

NOW Foods, Magnesium Citrate, 200 mg, 250 Tablets works out at $0.19 per serving. $0.19 per serving — mid price tier for this outcome. The cheapest ranked pick here is $0.12 per serving.

No. Retailer links may be affiliate links, but rankings and placement are never paid. Every product is scored by the same public model, and the ranking is recomputed from the underlying product data rather than edited by hand.

Keep exploring

Other outcomes

  • Stool consistencyForm or texture of stool.
  • Stool frequencyNumber of bowel movements over time.

Use rankings as research support

DoseRank rankings are informational and not medical advice. If you are pregnant, breastfeeding, using medications, or managing a health condition, ask a qualified clinician whether a supplement fits your situation. Stop use and report concerning adverse events to a clinician, the product maker, or the retailer.

Disclosure

Retailer links may be affiliate links. Rankings and placement are not paid placement.

NOW Foods, Magnesium Citrate, 200 mg, 250 Tablets

$0.19/serving · ★ 4.8 · In stock

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Cheaper alternative$0.15 per servingNature's Way, Magnesium Complex, 100 Capsules (250 mg per Capsule)

Retailer links may be affiliate links. Rankings and placement are never paid.

Magnesium Citrate

Studied window 250-500 mg · this pick 400 mg

The ranking“Why should I trust this pick?”Trust 95

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.

  • 2,488 products scored
  • Never paid placement
  • Evidence level: Strong · 92
  • 306 brands
  • 21 ingredients
See the full analysis — every score, every productHow the ranking works
The price“Can I do better than $0.19 a serving?”Value 69

$0.19 per serving — mid price tier for this outcome. The cheapest ranked pick here is $0.12 per serving.

  • 8
    Best Naturals, Magnesium Citrate, 250 Tablets (200 mg per Tablet)Score 85 · $0.12/serving
    iHerb
  • 7
    Nature's Way, Magnesium Complex, 100 Capsules (250 mg per Capsule)Score 85 · $0.15/serving
    iHerb

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 $0.19 a serving.

NOW Foods, Magnesium Citrate, 200 mg, 250 Tablets — in stock at a tracked retailer.

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