SuppleGut Take the quiz

Stool form and regularity

Organics Ocean Real Magnesium Citrate

A three-capsule-a-day magnesium citrate capsule with 250 mg of elemental magnesium and one other ingredient, sold for regularity, relaxation and energy.

Organics Ocean Real Magnesium Citrate
Format
Capsule, once a day
Type
Magnesium
Cost
$1.20 a day
Customer rating
4.5 out of 5 from 584 ratings from Amazon

What customers consistently report

Those are the themes that recur across the reviews. Moderate review confidence — Amazon shows 4.5 from 584 independent ratings and the brand’s Judge.me widget shows 4.66 from 74, but the Amazon reviews are mostly about sleep and may overlap with the brand’s glycinate listing, and the brand’s Trustpilot profile (2.6 from 12 recent reviews) covers other products.

Why it might work

Magnesium citrate is a magnesium salt that is not fully absorbed, so some stays in the intestine and holds water there, which softens stool and can loosen the bowels; the brand describes this as pulling water into the digestive tract. Higher doses make that more likely, and diarrhea is the effect the brand lists; magnesium also acts in muscle and nerve function, which is the basis for its sleep and cramp claims. The constipation trials used magnesium oxide at about 900 mg of elemental magnesium, so this label’s 250 mg may act more gently, and the label does not let you check how it compares. People with kidney disease or on certain medicines should ask a clinician first; no such warning was found on the pages read.

What the research supports

No trial of this product or of magnesium citrate capsules for constipation was found. The placebo-controlled trials were of magnesium oxide at 1.5 g a day, about 900 mg of elemental magnesium: 70.6% vs 25.0% improved in 34 women, and 68.3% vs 11.7% on placebo in 90 patients; two oxide trials pooled to 68% vs 19% responders. This label has 250 mg of elemental magnesium, about 28% of that, and a US guideline gives oxide only a conditional recommendation.

What the label discloses

The panel is simple and complete: one active, 250 mg elemental magnesium from 1,500 mg magnesium citrate, plus tapioca starch and the capsule, with no blend. The brand says the powder and the finished product are each tested for heavy metals and names no laboratory, and its “30% improved absorption” claim cites no study.

Who this tends to suit

We match this product to people reporting irregular bowel habits and constipation. It fits someone whose priority is regularity or a steady daily routine. Whether it is the best fit for you depends on the rest of your answers — what you have already tried, what format you will take, and anything that has to be ruled out.

Where it may not fit

The label supports vegan and gluten-free. We flag this product for anyone taking prescription medication, and the quiz removes it rather than recommending it in those cases. That is a caution about who should be deciding, not a claim about the product. A capsule only works if you will take it once a day, every day.

Side effects and what to be aware of

Reviewers mostly describe sleep and leg cramps rather than bowel changes, a few say it had no effect, and one calls it expensive. The brand lists diarrhea or sleepiness at high doses and advises splitting the dose if it upsets the stomach; magnesium can interact with some antibiotics and other medicines, so the medication caution is set here. Trustpilot complaints about the brand as a whole mention unexpected charges and unanswered service calls, and the refund needs the product returned.

Common questions

Does Organics Ocean Magnesium Citrate work for constipation?

No trial of this product was found. Controlled trials of magnesium oxide at about 900 mg of elemental magnesium a day improved constipation (68.3% vs 11.7% on placebo in 90 patients), and this label gives 250 mg. Amazon reviewers mention sleep more than bowel changes, though some report regular movements within a day.

What are the side effects of Organics Ocean Magnesium Citrate?

The brand lists diarrhea or sleepiness at high doses, suggests splitting the three capsules across the day if it upsets the stomach, and says to consult a healthcare professional. The NIH sets an upper limit of 350 mg a day for magnesium from supplements, above this label’s 250 mg. No pregnancy, kidney or medication warning was found on the pages read.

How much does Organics Ocean Magnesium Citrate cost?

A 90-capsule bottle is a 30-day supply at three capsules a day: $35.99 on Amazon ($1.20 a day), $35.00 on the brand site ($1.17), $30.59 with Amazon Subscribe & Save ($1.02) and $29.99 a month on the brand’s subscription ($1.00). Amazon’s 540-capsule pack is $0.83 a day.

Magnesium citrate vs magnesium glycinate from Organics Ocean: which is for regularity?

The brand sells citrate for regularity, relaxation and energy and glycinate with zinc for sleep and muscle cramps. Glycinate has the larger Amazon pool (4.6 from 7,985) and citrate 4.5 from 584; the trials of magnesium for constipation used oxide, not glycinate.

What is Organics Ocean’s refund policy?

The brand states a 90-day money-back guarantee that needs an RMA number and the product returned, even if empty. Its Trustpilot profile (2.6 from 12 recent reviews) has complaints of unexpected charges and unanswered service calls, mostly about other products, and the company replied to 11% of negative reviews. On Amazon the item is non-returnable except if damaged or defective.

Before you take this. Speak to a doctor or pharmacist first if you are taking prescription medication. Nothing on this page is medical advice, and no supplement diagnoses, treats, cures or prevents disease.

Is this the right one for you?

The quiz works out which of the products we have researched fits your symptoms, your routine and what you have already tried — and tells you plainly if none of them do.

Take the quiz →

Free. Private. Nothing to sign up for.

Others we researched for the same job

These sit in the same role as Organics Ocean Real Magnesium Citrate — stool form and regularity — so they are the sensible things to weigh it against.

See all the products we have researched →

Related reading

Background on how this type of product works, read from the trial evidence.