SUPPLEMENTS·NOW FOODS
NOW Magnesium Citrate 200mg
4.6 · 17,000 reviews
Editor score7.7/10
Best for: Budget magnesium, constipation-prone users
Best price today↓ $3.90 vs MSRP
$11.09$14.99
At Amazon · 90-day low $11.09 · avg $13.42
Buy at Amazon · $11.09 ↗Updated 2026-07-03Tested 21 days
Active
Magnesium citrate 200mg
Form
Tablet
Absorption
Good (better than oxide)
Price across 3 retailers
Live as of 2026-07-03amazon
AmazonBest price✓ Fast delivery · easy returns
Magnesium citrate 200mg
$11.09
2026-07-03
We verify the highlighted price 2026-07-03 and list it first — for most readers it's also the fastest checkout and simplest returns. Other retailers are linked for price-checking; their stock and pricing change frequently.
90-day price history
$11.09 – $14.99Current price is 17% below the 90-day average. Reasonable buy today.
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Should you buy it?
What we like
- Lowest cost per mg of any credible form
- GMP-certified 50-year manufacturer
- Helps regularity as a side benefit
- Well-absorbed vs oxide forms
What to know before buying
- Laxative lean at higher doses
- Less relaxation-targeted than glycinate
- Plain tablets, large-ish
At a glance
ActiveMagnesium citrate 200mg
FormTablet
AbsorptionGood (better than oxide)
Digestive effectMild laxative at higher doses
Count100-250 tablets
CertificationGMP, in-house tested
OnsetBuilds over 1-2 weeks
Best timeWith dinner
Best forCheapest credible magnesium
Compare with alternatives
Quick verdicts for the trackers most often considered alongside the NOW Magnesium Citrate 200mg.
VS·HEAD-TO-HEAD
NOW Magnesium Citrate 200mg vs Doctor's Best High Absorption Magnesium Glycinate 200mg (240ct)
The highest-rated magnesium on Amazon for sleep — glycinate form is chelated for maximum absorption without laxative effects.
→ Restless legs, muscle tension, anxiety-driven insomnia, athletes
VS·HEAD-TO-HEAD
NOW Magnesium Citrate 200mg vs Life Extension Neuro-Mag Magnesium L-Threonate
The brain-first magnesium — L-threonate is the form studied for crossing into the brain, aimed at racing-mind nights and cognitive support.
→ Racing-mind sleeplessness, cognitive-focused users
VS·HEAD-TO-HEAD
NOW Magnesium Citrate 200mg vs Nested Naturals LUNA Sleep Aid
The kitchen-sink botanical — melatonin, valerian, chamomile, L-theanine and magnesium in one capsule, with a melatonin-free version for purists.
→ One-capsule botanical stacks, melatonin-free option
Decision support · what no other comparison site has
Take the quiz · 60 secNot sure which tracker is for you?
Our 60-second sleep score quiz asks 8 questions and recommends the right tracker for your goals. Built by sleep engineers. Free, no signup.
Frequently asked questions
Citrate vs glycinate?
Glycinate is gentler on digestion and slightly better for pure relaxation; citrate costs less and helps regularity. Sensitive stomach: glycinate. Budget + sluggish digestion: citrate.
Will it upset my stomach?
At 200mg most people are fine; higher doses lean laxative — that's citrate chemistry. Take with food.
Is NOW a trustworthy brand?
One of the industry's oldest GMP manufacturers with in-house labs — the standard answer for budget-tier trust.
How much for sleep?
200-400mg elemental in the evening is the studied range. Start at 200mg and hold for two weeks.
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