Knowledge hub
GLP-1 treatment and kidney health, explained properly
86 clinically reviewed articles, authored and medically reviewed by Professor Mohammed Mahdi Althaf and referenced to NICE, the NHS and the UK Kidney Association.
GLP-1 medications explained
How GLP-1 receptor agonists work, how they are dosed, and what to expect month by month.
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GLP-1 medications explained
What GLP-1 medicines such as Mounjaro (tirzepatide) and Wegovy (semaglutide) actually do, who NICE says they are for, how much weight loss to expect, and the side effects that matter.
BMI and ideal body weight when you have kidney disease
Why BMI can mislead in CKD and dialysis, and how ideal body weight is calculated.
Comparing GLP-1 medicines available in the UK
Semaglutide, tirzepatide, liraglutide and oral options compared for people with kidney disease.
Dose escalation: what to expect
Why the dose goes up slowly, what each step feels like, when to stay put, and how dose changes are recorded and reviewed at this clinic.
Dose escalation: why it is slow and what to expect
Why GLP-1 doses step up over months, and what to do when a step is not tolerated.
Food noise: why GLP-1 medicines quieten constant thoughts about food
What 'food noise' means, why it fades on treatment, and how to use that window well.
GLP-1 medicines and alcohol
How alcohol interacts with GLP-1 therapy, kidney disease and hydration.
GLP-1 medicines and your other prescriptions
Delayed gastric emptying, oral medicine absorption and the drugs that need review.
GLP-1 medicines, type 2 diabetes and kidney disease
How GLP-1 therapy affects glucose control and diabetes medicines when you also have CKD.
GLP-1 myths and facts
Ten common claims about weight-loss injections, checked against NICE and NHS guidance.
GLP-1 treatment in older adults with kidney disease
Frailty, sarcopenia and falls risk when using weight-loss medicines over 70.
How GLP-1 receptor agonists work for weight loss
A plain-English explanation of how GLP-1 medicines change appetite, gastric emptying and blood glucose.
How to inject a GLP-1 medicine correctly
Step-by-step injection technique, site rotation and safe sharps disposal in the UK.
Liraglutide (Saxenda) in CKD patients
The role of daily injections in renal weight management and how it compares to weekly options.
Oral weight loss medications: Rybelsus and beyond
Comparing oral GLP-1 tablets with injectable options for patients with kidney disease.
Private GLP-1 treatment: what you are actually paying for
How booking, medication supply, follow-up payment and clinical monitoring are separated.
Semaglutide (Wegovy) explained
How semaglutide is dosed, what results to expect, and the NICE two-year treatment limit.
Tirzepatide (Mounjaro) explained
What tirzepatide is, how it differs from semaglutide, and how doses are stepped up safely.
What happens when you stop a GLP-1 medicine
Appetite rebound, weight regain and how a structured stop protects your results.
What realistic weight loss looks like on GLP-1 therapy
Typical percentage weight loss over 12, 26 and 52 weeks, and how we judge success beyond the scale.
Who is eligible for GLP-1 weight-management treatment
BMI thresholds, comorbidity criteria and the extra checks used for kidney patients.
Your GLP-1 monitoring schedule
Weekly weights, six-weekly clinical review and the 26-week outcome assessment explained.
Side effects, safety and contraindications
Nausea, reflux, gallbladder risk, absolute contraindications and when to stop treatment.
Absolute contraindications to GLP-1 therapy
The situations in which GLP-1 medicines must not be used, and the safer alternatives we discuss instead.
Comprehensive guide to GLP-1 complications and risks
A deep dive into potential complications including pancreatitis, gallbladder disease, and severe dehydration.
Constipation, reflux and bloating on GLP-1 treatment
Gut side effects beyond nausea, and how to manage them when potassium, fibre and fluid intake are restricted.
Gastrointestinal slowing and 'Ozempic Face'
Addressing common concerns about stomach slowing and facial fat loss during rapid weight loss.
Managing hypoglycaemia risk in non-diabetic CKD patients
Why GLP-1s rarely cause low blood sugar in non-diabetics, and what to watch for if you have kidney failure.
Managing nausea on GLP-1 treatment
Practical, kidney-safe ways to reduce nausea during dose escalation, and when sickness is a warning sign rather than a side effect.
Monitoring Heart Rate on GLP-1 Treatment
Why GLP-1s can slightly increase resting heart rate and what this means for your cardiovascular health.
Muscle loss and sarcopenia risk during weight loss
Why up to a quarter of weight lost can be lean tissue, and what we do to protect strength in kidney disease.
Pancreatitis and gallbladder problems
How to recognise the two uncommon but serious complications of GLP-1 treatment, and what happens next.
Understanding 'Sick Day Rules' for weight loss jabs
When to pause your weight loss medication to protect your kidneys during acute illness.
Vomiting, dehydration and acute kidney injury
Why persistent vomiting on GLP-1 treatment is a kidney emergency, and the sick-day rules we ask every patient to follow.
GLP-1 weight loss and kidney disease
Evidence, monitoring and safety considerations for GLP-1 treatment in chronic kidney disease.
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GLP-1 weight loss and kidney disease
What the evidence says about GLP-1 treatment when kidney function is reduced, how eGFR and creatinine are interpreted during weight loss, and the monitoring that keeps treatment safe.
Albuminuria: Tracking Your Progress
How to interpret your urine protein results as your weight decreases.
Anaemia, fatigue and weight loss in CKD
Why tiredness during treatment is not always the medicine, and the blood tests we check before blaming the dose.
Cardiovascular Risk Factors in CKD: The Weight Connection
Understanding how obesity exacerbates cardiovascular risk in chronic kidney disease and why weight loss is a primary preventative strategy.
Fatty Liver and the Kidney
The connection between NAFLD (Non-Alcoholic Fatty Liver Disease) and Chronic Kidney Disease.
GLP-1 Use in Polycystic Kidney Disease
Specific considerations for patients with ADPKD using weight loss medications.
How fluid affects your weight and BMI calculations
Why fluid retention can mask fat loss and how we adjust for oedema in clinical monitoring.
Hydration and GI side effects in CKD
Practical, kidney-aware advice on nausea, vomiting, constipation and fluid intake — including sick-day rules and when to stop waiting and call for help.
Hypertension, Weight, and Renal Health
How weight loss acts as a potent anti-hypertensive treatment in patients with renal impairment.
Inflammation and the 'Renal Gut'
How gut health affects kidney inflammation and how GLP-1s may help.
Lipid Management in CKD
Beyond statins: The role of weight loss in managing cholesterol in renal failure.
Metabolic Syndrome and Chronic Kidney Disease
Treating the root causes: Insulin resistance, dyslipidemia, and renal inflammation.
Obesity-Related Glomerulopathy: Reversing Damage
How excess weight directly damages kidney filters and the clinical evidence for regression through weight loss.
Pre-Pregnancy Weight Optimization in CKD
Preparing for a safe pregnancy with kidney disease through metabolic health.
Psychological Barriers to Weight Loss in CKD
Addressing the mental health challenges of living with a chronic condition while trying to manage weight.
Sarcopenic Obesity in CKD
The danger of "hidden" muscle loss in patients with high BMI and how to lose fat while preserving strength.
Sleep Apnoea in Renal Patients
The link between obesity, obstructive sleep apnoea, and rapid CKD progression.
The role of SGLT2 inhibitors and GLP-1s in CKD
How combination therapy works to protect the kidneys while managing weight and blood sugar.
The Role of SGLT2 Inhibitors and Weight Loss
Combining Flozins and GLP-1s for maximum renal protection.
Uric Acid, Gout, and Weight Loss
Managing gout flares during rapid weight loss in renal patients.
Weight loss on dialysis (HD/PD)
Fluid balance, dry weight and appetite change for people on haemodialysis or peritoneal dialysis.
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Weight loss on dialysis (HD/PD)
How weight loss works on haemodialysis and peritoneal dialysis: separating fluid from fat, protecting muscle and albumin, PD glucose absorption, and transplant listing.
Adjusting dialysis prescriptions during GLP-1 weight loss
Why your dialysis needs change as you lose weight and how we coordinate with your unit.
Dry weight and your weekly log
A short, practical guide to recording a weekly weight that means something when you are on dialysis — and what your clinician reads into the trend.
Dry weight, fluid shifts and true fat loss on dialysis
How we separate genuine fat loss from fluid change, and why your target weight on dialysis keeps moving.
Exercise for Dialysis Patients: A Guide
Safe ways to stay active while on haemodialysis or peritoneal dialysis.
GLP-1 use in Peritoneal Dialysis (PD) patients
Unique considerations for PD patients, including glucose absorption from dialysate.
Understanding dry weight, pre-dialysis, and post-dialysis weight
A clinical breakdown of how weight is measured on dialysis and what target weight actually means.
Weight management after kidney transplant
Protecting graft function while losing weight, and interactions with immunosuppression.
GLP-1 medicines and immunosuppression
How slowed stomach emptying can alter tacrolimus, ciclosporin and mycophenolate absorption, and the monitoring that keeps you safe.
Post-transplant weight gain: The role of steroids
Why weight gain is common after transplant and how GLP-1s counteract steroid-induced hunger.
Preparing for transplant listing when you have obesity
How BMI thresholds affect access to the transplant waiting list, and how a monitored weight programme fits with assessment.
Protecting graft function while losing weight
Interpreting creatinine and eGFR changes after transplant during active weight loss, and the safety limits we apply.
Steroid-Induced Weight Gain After Transplant
Managing the metabolic side effects of immunosuppression, specifically corticosteroids like prednisolone.
Transplant Graft Longevity and Weight
Evidence on how maintaining a healthy weight extends the life of a donated kidney.
Waitlist Optimization: Preparing for Your Kidney Transplant
A guide for patients on optimizing metabolic health and body composition to ensure readiness for the 'call' for a donor kidney.
Weight loss and kidney transplant eligibility
How achieving a lower BMI can unlock access to the transplant waiting list.
Weight management after kidney transplant
Why post-transplant weight gain threatens graft function, and how monitored GLP-1 treatment is used safely.
Weight Management and Kidney Transplant Eligibility
Exploring the critical link between BMI and waitlist status, and how modern weight loss strategies can improve surgical outcomes.
CKD and renal nutrition
Protein, potassium, phosphate, salt and hydration while losing weight with kidney disease.
Hydration and fluid limits on GLP-1 treatment
Balancing the need to stay hydrated with a prescribed fluid restriction while appetite and thirst change.
Potassium and phosphate while losing weight
Why standard healthy-eating advice can be unsafe in kidney disease, and how to build low-potassium, low-phosphate meals you enjoy.
Preserving bone density in CKD weight loss
Managing Renal Bone Disease (CKD-MBD) while losing weight on GLP-1 therapy.
Protein needs in CKD during weight loss
How much protein is right when you have kidney disease and are actively losing weight, and why the answer changes on dialysis.
Renal-friendly meal planning on a reduced appetite
How to build small, satisfying meals that still meet protein and energy needs when appetite is much lower.
Renal-safe protein supplements for weight loss
Choosing the right protein powders and bars that won't overload your kidneys with phosphate or potassium.
Exercise and muscle protection on GLP-1
Resistance training, protein timing and preserving lean mass and grip strength during weight loss.
Exercising safely with a fistula or PD catheter
Specific precautions for arteriovenous fistulas, tunnelled lines and peritoneal dialysis catheters during exercise.
Protein timing and strength during weight loss
How to combine protein intake and training so that weight lost is fat rather than muscle.
Resistance training basics while on GLP-1 treatment
A safe starting programme to protect muscle during weight loss, adapted for CKD, dialysis and transplant patients.
Walking, cardio and blood pressure in CKD
How aerobic exercise fits alongside GLP-1 treatment, and why blood pressure medicines often need reducing.
Your treatment journey
Every step from first consultation to ongoing review, and which system handles what.
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Your treatment journey
Every step from your first face-to-face assessment to long-term review — what happens, what is expected of you, and which organisation handles each part.
Mental health and relationship with food in CKD
The psychological impact of 'food noise' reduction and living with a restrictive renal diet.
Prescription frequency and clinical safety checks
Why we require monthly bloods and weight logs before every new prescription.
Six-weekly reviews explained
What happens at a six-weekly review, the questions your clinician is answering, and how to prepare so the appointment is worth having.
The 'Plateau': Managing stalled weight loss
Strategies for when the scales stop moving, including dose adjustment and metabolic adaptation.
Travel and GLP-1: Storing your pens safely
How to manage your medication while travelling, including temperature control and crossing borders.