Citrate

Also known as: citric acid salt, trisodium citrate, potassium citrate, magnesium citrate, ferric citrate, calcium citrate, bismuth potassium citrate, regional citrate anticoagulation

Evidence under review. — Not yet rated

Salt form used to deliver minerals like magnesium and iron. Evidence for standalone benefits is limited.

What it does

Citrate is a salt form of citric acid used as a carrier molecule to deliver minerals such as magnesium, potassium, iron, and calcium in supplements. As a delivery vehicle, it may improve mineral...
Evidence quality

Evidence base hasn't been formally rated yet. See research below.
Clinical dose

No established dose
Found in

310 Lemonade - Peach Pear, Key Nutrients Electrolyte Recovery Plus Powder, zuPoo and 17 more

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What the Science Says

Citrate is a salt form of citric acid used as a carrier molecule to deliver minerals such as magnesium, potassium, iron, and calcium in supplements. As a delivery vehicle, it may improve mineral absorption compared to other salt forms. In medical settings, citrate solutions are used to prevent blood clotting in dialysis catheters and as a reference comparator for kidney stone prevention.

What It Doesn't Do

Citrate alone won't reduce arterial stiffness or calcification in diabetics — a clinical trial found no benefit. It's not a standalone treatment for cardiovascular disease. Don't confuse the citrate carrier with the mineral it delivers; the mineral does the work. No evidence it boosts energy, detoxes the body, or improves athletic performance on its own.

Evidence-Based Benefits

Trisodium citrate solution prevents catheter dysfunction in hemodialysis patients similarly to heparin.

Moderate Evidence

Effective at: 5% trisodium citrate solution (catheter locking)

Supporting studies (click to view on PubMed):

PMID 41820022

Low-dose ferric citrate supplementation helps women recover iron stores faster after blood donation.

Weak Evidence

Effective at: 6 mg/day ferric citrate for 12 weeks

Supporting studies (click to view on PubMed):

PMID 42134847

Regional citrate anticoagulation normalizes ionized calcium levels in most dialysis patients within 12 hours.

Weak Evidence

Effective at: Protocol-based citrate infusion during CRRT

Supporting studies (click to view on PubMed):

PMID 42168863

Absorption & Bioavailability

Moderate — citrate salt forms are generally considered bioavailable delivery vehicles for minerals, but absorption depends on the specific mineral attached. No direct bioavailability comparison data provided in the supplied studies.

Red Flags to Watch For

Citrate is a delivery form, not an active ingredient — always check what mineral or compound it is carrying before evaluating a product.
Magnesium citrate at 350 mg/day showed no benefit for arterial stiffness in a clinical trial, suggesting dose and population matter greatly.
High-concentration citrate solutions used medically (e.g., catheter locking) are very different from oral supplement doses — do not conflate the two.
Many products list 'citrate' to imply superior absorption without evidence that the specific dose used achieves meaningful mineral delivery.

Supplement

Mostly Legit

Purolabs Collagen Complex

Overhyped

Supplement

Overhyped

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Frequently Asked Questions

What does Citrate do?

Salt form used to deliver minerals like magnesium and iron. Evidence for standalone benefits is limited.

What is the effective dose of Citrate?

No established dose

Is Citrate safe?

Citrate is a delivery form, not an active ingredient — always check what mineral or compound it is carrying before evaluating a product.

What doesn't Citrate do?

Citrate alone won't reduce arterial stiffness or calcification in diabetics — a clinical trial found no benefit.

Research Sources

PubMed
NIH DSLD

This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-25