Order protocol
Sleep & recovery Whole topic
Hormones & energy Whole topic
Metabolism & nutrition Whole topic
Brain & mind Whole topic
Longevity & body Whole topic
Women & family Whole topic
Basics & environment Whole topic
Biohacking & technology Whole topic
Fénix Methode

Tired of generic advice? A protocol built on your numbers.

Order protocol
All articles Every article is based on a chapter of the book NAVRHNUTÝ and peer-reviewed studies.
Biohacker score2 minutes – find out where your body holds you back Results checkNormal vs. optimal for your blood values Biological ageHow old your body is – from 9 blood values CalculatorsBMI, waist, protein, sleep, caffeine, VO2max Daily helperDaily routines, light, sleep and breathing on your phone My stackCheck supplements & medication + daily plan ChallengesSmall daily habits with reminders Fitness testVO2max, fitness age, strength and balance at home Biological twinAll your data in a 3D body What to get testedPrintable list of blood tests Sample protocolSee what you get E-numbers & sugarsWhat is on the label and what to avoid Online advisorAnswers to common questions about body and results SupplementsForms, timing and combination check RecipesMeals without hidden sugars or needless additives GlossaryBiohacking explained from A to Z Gift voucherGive health – the protocol or the book
← Back to the E-number overview
E340Caution

Potassium phosphates

Group: Acidity regulators

Harm level3 of 5In moderation

In plain words

Potassium phosphates are potassium salts of phosphoric acid. You find them in meat products, processed cheese, coffee creamers and instant drinks, where they stabilise and regulate acidity.

Where you find it: processed cheese, cured meats, cola, baking powder

Our recommendation

Limit them; people with kidney disease should avoid them as far as possible.

Possible risks and effects

  • People with chronic kidney disease – phosphate additives increase phosphorus load.
  • High long-term phosphorus intake may disturb calcium and bone balance.
  • Children and high consumers of processed foods may exceed the ADI, according to EFSA.

For experts

Potassium phosphates belong to the phosphate additive group E338–E341 and E450–E452, used as acidity regulators, emulsifying and melting salts, water binders in meat and raising agents. EFSA's 2019 re-evaluation set a group ADI of 40 mg phosphorus/kg body weight per day and noted that some population groups may exceed it. Inorganic phosphate from additives is almost fully absorbed, unlike phosphorus bound in plants, which matters especially in chronic kidney disease.

Check another E-number

More from this group

E338Phosphoric acidE339Sodium phosphatesE341Calcium phosphatesE450DiphosphatesE451TriphosphatesE452PolyphosphatesE325Sodium lactateE330Citric acid

This information is educational and based on EFSA assessments and available studies; it does not replace medical advice. With allergies, intolerances or illness, follow your doctor’s advice.