“Sodium Phosphate?”Here!

Mineral

Hasn’t appeared in a scanned product yet.

As a supplement

Talk to your doctor or pharmacist.

Roll Call does not check drug interactions or assess personal safety.

A mineral salt combining sodium and phosphate, used in supplement manufacturing as a buffering or stabilizing agent.

Why it’s used

Used to help maintain a stable pH in a formulation and sometimes as a minor source of sodium or phosphate in the finished product.

What the evidence says

As used in supplements it functions as a processing aid rather than an active ingredient, so there is no efficacy claim to evaluate.

Where we looked

There was no paper to cite here, so this is the search instead — run it yourself and see what we saw.

PubMed: 616 records · searched September 2026"Sodium Phosphate"[Title/Abstract] AND (review[pt] OR "safety assessment"[Title/Abstract] OR "risk assessment"[Title/Abstract] OR toxicology[Title/Abstract] OR toxicity[Title/Abstract] OR characterization[Title/Abstract] OR characterisation[Title/Abstract])
PubMed: 21 records · searched September 2026"Sodium Phosphate"[Title/Abstract] AND ("dietary supplements"[MeSH] OR supplementation[Title/Abstract] OR supplement[Title/Abstract] OR supplements[Title/Abstract] OR "oral administration"[Title/Abstract]) AND (randomized controlled trial[pt] OR clinical trial[pt] OR meta-analysis[pt] OR systematic review[pt]) AND humans[MeSH]
PubMed: 4978 records · searched September 2026"Sodium Phosphate"[Title/Abstract]

This says what this database holds under these terms. It is not a finding that no research exists.

Context

Amounts present are set by formulation needs, not by any studied therapeutic dose.

Rumors

1
Sodium phosphate supplements improve endurance and athletic performance.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- NutraBio — a brand: makes and sells performance and wellness supplements
  How we know who this is
  “At NutraBio, we're committed to a singular goal – providing you with the purest, safest and most effective weight management and sports supplements that science can offer.” (their page)
  “In-House Manufacturing: We proudly manufacture all products in-house, ensuring unmatched quality control and consistency.” (their page)
2
Sodium phosphate helps prevent dehydration by helping the body retain water.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- Exercise.com — a brand: sells gym management software for fitness businesses
  How we know who this is
  “Exercise.com is the best gym management software built to grow your fitness business, online and in-person.” (their page)
3
Loading sodium phosphate before an endurance event significantly improves cycling time trial performance.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- Hammer Nutrition — a brand: sells endurance sports fuels and supplements
  How we know who this is
  “Hammer Nutrition is an endurance sports nutrition company founded in 1987 by Brian Frank.” (their page)
  “Since starting the company in 1987, Brian Frank has grown Hammer Nutrition into one of the leading endurance fuel and supplement providers in the world.” (their page)
4
Sodium phosphate supplements cause digestive problems such as gas, diarrhea and nausea.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- NutraBio — a brand: makes and sells performance and wellness supplements
  How we know who this is
  “At NutraBio, we're committed to a singular goal – providing you with the purest, safest and most effective weight management and sports supplements that science can offer.” (their page)
  “In-House Manufacturing: We proudly manufacture all products in-house, ensuring unmatched quality control and consistency.” (their page)
5
People with kidney disease should avoid supplements containing sodium phosphate because the added phosphate builds up and harms bones and the heart.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- Kidney Vitality — a brand: sells kidney-focused multivitamin supplements; trading name of Aura & Oak LTD
  How we know who this is
  “Kidney Vitality is a trading name of Aura & Oak LTD, United Kingdom.” (their page)
  “Kidney Vitality is a UK-made daily kidney supplement formulated by Professor Mohammed Mahdi Althaf, a UK Consultant Nephrologist (GMC 7216325).” (their page)