Clinician Guides 7 min read·Updated 17 June 2026 Clinician-reviewed

Approved (EFSA) Health Claims

The nutrient function claims listed below are taken in their exact authorised wording from the EU Register of nutrition and health claims (retained in UK law). They apply to the vitamins present in Kidney Vitality at the doses that meet the regulated significant-amount threshold. No disease, treatment or kidney-function claim is made.

  • Clinically Reviewed
  • NHS & NICE Aligned
  • UK Evidence-Based
  • Last Reviewed 17 June 2026

Professor Mohammed Mahdi Althaf

Consultant Nephrologist & Acute Physician

View Credentials

Professor Mohammed Mahdi Althaf

MD, MSc, PgDip (Clin Ed), FRCP, FHEA, FASN

Consultant Nephrologist & Acute Physician · GMC 7216325

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Direct answer

Food supplements in the UK may only use authorised nutrient function claims. The wording must be exact. Kidney Vitality uses only EFSA-authorised wording for its B-complex, vitamin C and vitamin D ingredients — and makes no disease or treatment claim.

Key recommendation: Only EFSA-authorised wording is used.

Quick answer

✓ Best choices

  • Vegetables, lower-potassium fruit and whole grains
  • Sensible portions of fish, eggs, chicken or tofu
  • Olive oil and unsalted nuts in small amounts

✓ Foods to limit

  • Added salt and ultra-processed foods
  • Phosphate additives in processed meats and ready meals
  • Sugary and energy drinks

Key takeaway

Food supplements in the UK may only use authorised nutrient function claims. The wording must be exact. Kidney Vitality uses only EFSA-authorised wording for its B-complex, vitamin C and vitamin D ingredients — and makes no disease or treatment claim.

Who should be cautious

People on dialysis, post-transplant, pregnant or breastfeeding, or taking prescription medication — confirm with your renal team before changes.

Vitamin D (1000 IU / 25 mcg)

  • Vitamin D contributes to the normal absorption / utilisation of calcium and phosphorus.
  • Vitamin D contributes to normal blood calcium levels.
  • Vitamin D contributes to the maintenance of normal bones.
  • Vitamin D contributes to the maintenance of normal muscle function.
  • Vitamin D contributes to the maintenance of normal teeth.
  • Vitamin D contributes to the normal function of the immune system.
  • Vitamin D has a role in the process of cell division.

Vitamin C (75 mg)

  • Vitamin C contributes to normal collagen formation for the normal function of blood vessels, bones, cartilage, gums, skin and teeth.
  • Vitamin C contributes to normal energy-yielding metabolism.
  • Vitamin C contributes to the normal functioning of the nervous system.
  • Vitamin C contributes to normal psychological function.
  • Vitamin C contributes to the normal function of the immune system.
  • Vitamin C contributes to the protection of cells from oxidative stress.
  • Vitamin C contributes to the reduction of tiredness and fatigue.
  • Vitamin C increases iron absorption.

Thiamin (B1)

  • Thiamin contributes to normal energy-yielding metabolism.
  • Thiamin contributes to the normal function of the nervous system.
  • Thiamin contributes to normal psychological function.
  • Thiamin contributes to the normal function of the heart.

Riboflavin (B2 as R5P)

  • Riboflavin contributes to normal energy-yielding metabolism.
  • Riboflavin contributes to the normal function of the nervous system.
  • Riboflavin contributes to the maintenance of normal mucous membranes, red blood cells, skin and vision.
  • Riboflavin contributes to the normal metabolism of iron.
  • Riboflavin contributes to the protection of cells from oxidative stress.
  • Riboflavin contributes to the reduction of tiredness and fatigue.

Niacin (B3)

  • Niacin contributes to normal energy-yielding metabolism.
  • Niacin contributes to the normal function of the nervous system.
  • Niacin contributes to normal psychological function.
  • Niacin contributes to the maintenance of normal mucous membranes and skin.
  • Niacin contributes to the reduction of tiredness and fatigue.

Kidney Vitality is a daily multivitamin developed by a UK Consultant Nephrologist using renal nutrition principles. It contains no added potassium, magnesium, phosphorus or iron, and no herbal blends. See the formulation.

Pantothenic acid (B5)

  • Pantothenic acid contributes to normal energy-yielding metabolism.
  • Pantothenic acid contributes to normal mental performance.
  • Pantothenic acid contributes to normal synthesis and metabolism of steroid hormones, vitamin D and some neurotransmitters.
  • Pantothenic acid contributes to the reduction of tiredness and fatigue.

Vitamin B6 (P5P)

  • Vitamin B6 contributes to normal cysteine synthesis.
  • Vitamin B6 contributes to normal energy-yielding metabolism.
  • Vitamin B6 contributes to the normal function of the nervous system.
  • Vitamin B6 contributes to normal homocysteine metabolism.
  • Vitamin B6 contributes to normal protein and glycogen metabolism.
  • Vitamin B6 contributes to normal psychological function.
  • Vitamin B6 contributes to normal red blood cell formation.
  • Vitamin B6 contributes to the normal function of the immune system.
  • Vitamin B6 contributes to the reduction of tiredness and fatigue.
  • Vitamin B6 contributes to the regulation of hormonal activity.

Folate (5-MTHF)

  • Folate contributes to maternal tissue growth during pregnancy.
  • Folate contributes to normal amino acid synthesis.
  • Folate contributes to normal blood formation.
  • Folate contributes to normal homocysteine metabolism.
  • Folate contributes to normal psychological function.
  • Folate contributes to the normal function of the immune system.
  • Folate contributes to the reduction of tiredness and fatigue.
  • Folate has a role in the process of cell division.

Vitamin B12 (methylcobalamin)

  • Vitamin B12 contributes to normal energy-yielding metabolism.
  • Vitamin B12 contributes to the normal function of the nervous system.
  • Vitamin B12 contributes to normal homocysteine metabolism.
  • Vitamin B12 contributes to normal psychological function.
  • Vitamin B12 contributes to normal red blood cell formation.
  • Vitamin B12 contributes to the normal function of the immune system.
  • Vitamin B12 contributes to the reduction of tiredness and fatigue.
  • Vitamin B12 has a role in the process of cell division.

Biotin

  • Biotin contributes to normal energy-yielding metabolism.
  • Biotin contributes to the normal function of the nervous system.
  • Biotin contributes to normal macronutrient metabolism.
  • Biotin contributes to normal psychological function.
  • Biotin contributes to the maintenance of normal hair, mucous membranes and skin.

What is NOT claimed

Kidney Vitality does not claim to:

  • Treat, cure or prevent kidney disease or any other disease.
  • Slow CKD progression.
  • Improve, support or protect kidney function.
  • Replace prescribed renal vitamins, phosphate binders or any other medication.

It is a daily food supplement intended to contribute nutrients in line with EFSA-authorised wording, not a medicine.

Key practical tips

Designed for quick scanning — what to order, what to avoid, sensible portions, common mistakes.

  • Cook from scratch when you can
  • Read sodium labels (≤ 0.3 g per 100 g is low)
  • Take any concerns to your GP or renal team early

Clinical guidance

TL;DR summary

Food supplements in the UK may only use authorised nutrient function claims. The wording must be exact. Kidney Vitality uses only EFSA-authorised wording for its B-complex, vitamin C and vitamin D ingredients — and makes no disease or treatment claim.

Key takeaways
  • Only EFSA-authorised wording is used.
  • No claim to treat, cure or prevent any disease.
  • No claim to support kidney function or slow CKD progression.
  • Authorised wording must be exact — not paraphrased.
Kidney Diet & Nutrition Considerations

Diet is one of the most powerful tools you have to look after your kidneys. UK renal guidance points to a Mediterranean-style, reduced-salt pattern: plenty of vegetables, lower-potassium fruit, whole grains, sensible protein, beans and pulses in moderation, oily fish and olive oil. Personal targets — for potassium, phosphate, protein and fluid — should be set by your renal team based on your bloods.

Foods to prioritise

  • Vegetables, lower-potassium fruit and whole grains
  • Sensible portions of fish, eggs, chicken or tofu
  • Olive oil and unsalted nuts in small amounts

Foods to limit

  • Added salt and ultra-processed foods
  • Phosphate additives in processed meats and ready meals
  • Sugary and energy drinks

Potassium, phosphate and protein needs vary between individuals — please confirm personal targets with your renal team or dietitian. Browse the Kidney Diet Hub for more guides in this cluster.

Frequently asked questions

What are 'authorised health claims'?

In the UK and EU, only specific nutrient function claims are permitted on food supplements. These are listed in the EU Register of nutrition and health claims (retained in UK law) and must use the exact authorised wording. No food supplement may claim to treat, cure or prevent any disease.

Does Kidney Vitality make any disease claim?

No. Kidney Vitality makes no claim to treat, cure or prevent kidney disease, slow CKD progression, support kidney function, or modify any medical condition. The page below lists only the EFSA-authorised nutrient function statements that apply to the ingredients in the formula.

Why use the exact regulated wording?

The exact wording is what makes the claim authorised. Paraphrased or simplified versions are not authorised and would breach UK supplement labelling rules.

What foods are good for kidney health?

A Mediterranean-style, mostly plant-based, reduced-salt diet is the most consistent evidence-based pattern for kidney health. Build meals around vegetables, lower-potassium fruit, whole grains, fish, eggs or tofu, beans and pulses in moderation, and olive oil.

Nutritional challenges in kidney disease

Many people living with kidney disease have to limit foods because of potassium, phosphate, diabetes, dialysis, appetite changes or simply the time it takes to cook from scratch every day. That can make it harder to keep daily nutrition balanced — particularly for vitamins and minerals that food alone may not fully cover.

Kidney Vitality is a UK-formulated daily nutritional support product designed by Consultant Nephrologist Professor Mohammed Mahdi Althaf with renal nutrition in mind from the start. It keeps doses moderate, leaves out added potassium, phosphate and magnesium, and avoids megadose vitamin A — sitting alongside a kidney-friendly diet, not replacing it.

Why Kidney Vitality fits this need

Exact regulated wording

Every claim copied from the EU/UK authorised register.

No disease claims

No treatment, prevention or cure language anywhere on the product.

Transparency by design

The full list is published openly on this page.

Designed by a UK Consultant Nephrologist

Ready to support your kidney health?

If you have been researching kidney health, supplements, CKD nutrition or kidney-friendly living, Kidney Vitality was developed specifically around those principles by Professor Mohammed Mahdi Althaf (GMC 7216325). Nephrologist Developed Daily Multivitamin.

  • No Added Potassium
  • No Added Magnesium
  • No Added Phosphorus
  • No Added Iron
  • One capsule daily
  • UK GMP — BRCGS, NSF GMP, Halal

✓ Free UK tracked delivery  ·  ✓ Delivered every 30 days  ·  ✓ Pause or cancel anytime  ·  ✓ Never run out

ComparisonKidney VitalityTypical high-street multivitamin
Added potassiumNoneOften included
Added phosphateNoneOften included (E338–E452)
Vitamin A (retinol)No megadoseOften high-dose retinol
Kidney-focused formulationYesNo — general population
Consultant Nephrologist involvementYes (GMC 7216325)No
UK GMP manufacturedYes (BRCGS, NSF GMP)Varies

Food supplement. Not a medicine and not a treatment for kidney disease. Speak with your GP, pharmacist or renal team before starting any new supplement, especially in advanced CKD, on dialysis, post-transplant, pregnant or breastfeeding.

Clinical reviewer

Professor Mohammed Mahdi Althaf

Consultant Nephrologist

Acute Physician

GMC 7216325

View Full Biography

Professor Mohammed Mahdi Althaf is a UK Consultant Nephrologist and Acute Physician with a special interest in chronic kidney disease, AKI prevention and renal nutrition. He combines hospital practice with patient education and clinical guidance review.

View professional profile →
View Credentials
  • MD
  • MSc
  • PgDip (Clin Ed)
  • FRCP
  • FHEA
  • FASN

About this article

Written for UK patients and based on:

  • NICE guidance
  • NHS resources
  • British Dietetic Association guidance
  • Kidney Care UK resources
View methodology

Each article is researched against current UK clinical guidance (NICE NG203, NG118, NG136), NHS patient resources, KDIGO and KDOQI international guidelines, and the British Dietetic Association Renal Nutrition Group. Drafts are written by the Kidney Vitality editorial team and reviewed by a UK Consultant Nephrologist before publication. Content is reviewed on a rolling basis and updated when guidance changes.

Editorial standards

  • Clinically reviewed
  • NHS-aligned
  • NICE-aligned
  • Evidence-based
  • Reviewed before publication
View full editorial process

Every article is researched and written by the Kidney Vitality editorial team using current UK clinical guidance (NICE NG203, NG118, NG136), NHS patient resources, KDIGO/KDOQI international guidelines, and British Dietetic Association renal nutrition guidance. Drafts are reviewed for clinical accuracy by Professor Mohammed Mahdi Althaf, MD, MSc, PgDip (Clin Ed), FRCP, FHEA, FASN (Consultant Nephrologist & Acute Physician, GMC 7216325) before publication. Content is updated when UK guidance changes.

References (4)View Sources
  1. NICE NG203: Chronic kidney disease — assessment and management
  2. KDIGO 2024 Clinical Practice Guideline for the Evaluation and Management of CKD
  3. KDOQI Clinical Practice Guideline for Nutrition in CKD: 2020 Update
  4. British Dietetic Association — Renal Nutrition Group

Medical disclaimer

This content is educational only and does not replace personalised medical advice.

Read full disclaimer

This page is general information, not personal medical advice. If you have chronic kidney disease, are on dialysis, have had a kidney transplant, are pregnant or breastfeeding, or take prescription medication, please confirm any supplement with your GP, pharmacist or renal team before starting.