SUPPLEMENTS·NOW FOODS
NOW Magnesium Citrate 200mg
4.6 · 17,000 reviews
Editor score7.7/10
Best for: Budget magnesium buyers
Active
Magnesium citrate 200mg
Form
Tablet
Count
100-250 tablets
The budget workhorse — citrate from a GMP-certified 50-year brand, at the lowest cost per mg in our lineup.
NOW's version is GMP-certified with in-house lab testing and costs less than glycinate products in our lineup.
Price & where to buy
Prices checked 2026-08-28amazon
AmazonBest price✓ Fast delivery · easy returns
Magnesium citrate 200mg
$24.49
2026-08-28
Walmart
Walmart
Availability + price vary by store
Price varies
Not price-checked
Target
Target
Availability + price vary by store
Price varies
Not price-checked
Prices shown were last checked on 2026-08-28 and can change at any time — the price on the retailer's site at checkout is the one that applies. As an Amazon Associate and affiliate we may earn a commission on purchases made through these links, at no extra cost to you.
How our prices work
We show the lowest price we found at our last check (2026-07-03) and the manufacturer's list price for comparison. Retail prices — Amazon's especially — move constantly, so treat these as a guide: the price shown on the retailer's own page at checkout is the one that applies. Tap through to see each retailer's current price.
Should you buy it?
What we like
- Lowest cost per mg of any credible form
- GMP-certified 50-year manufacturer
What to know before buying
- Plain tablets, large-ish
At a glance
ActiveMagnesium citrate 200mg
FormTablet
Count100-250 tablets
CertificationGMP, in-house tested
Best forCheapest credible magnesium
Compare with alternatives
Quick verdicts for the supplements 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 — 240 tablets from Doctor's Best.
→ Value-focused buyers, athletes
VS·HEAD-TO-HEAD
NOW Magnesium Citrate 200mg vs Life Extension Neuro-Mag Magnesium L-Threonate
Life Extension's three-capsule magnesium L-threonate, with published certificates of analysis.
→ Magtein buyers, published-CoA shoppers
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 one is right for you?
Our 60-second sleep score quiz asks 8 questions and recommends the right sleep gear for your goals. Built by sleep engineers. Free, no signup.
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Frequently asked questions
Citrate vs glycinate?
See /natural-sleep-remedies for what the trial evidence actually shows.
Will it upset my stomach?
We don't publish dosing guidance — ask a pharmacist or your doctor.
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?
We don't publish dosing guidance — ask a pharmacist or your doctor.
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