Kidney Disease (General)
Kidney Disease (General) is a broad renal health condition involving kidney function. The evidence associated with this topic includes renal dysfunction and chronic kidney disease, including CKD 3–5, and considers outcomes such as kidney and patient survival, albuminuria, and other renal biomarkers.
Kidney Disease (General) is part of the renal category.
This list shows research findings, not treatments. Nothing here replaces medical care. If you have this condition, talk to a doctor.
What may help
None of these options has good evidence yet. Best evidence first.
8 options:1 mixed4 not enough evidence2 not tested in people1 no benefit found
CyclingpracticeMixed resultsSize of effect: Not known
Studies disagree: some found a benefit, others found none. Do not count on it.
2 of 3 studies found a benefit; 1 found none.
A 12-month RCT in 114 CHD patients found lower cfPWV and improved gait speed with intradialytic cycling; no exercise-related adverse events were reported. Another RCT, involving 110 people, found improvements in quality of life and recovery time after 12 weeks, with no serious adverse events reported.
Open the Cycling pageAlternate Nostril Breathing (Nadi Shodhana)practiceNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit.
A randomized controlled trial involving 69 patients undergoing hemodialysis reported that breathing exercises reduced pain and improved sleep and symptoms in this group.
Open the Alternate Nostril Breathing (Nadi Shodhana) pageBrain Games / PuzzlespracticeNot enough evidence
Too few or too small studies to know if it works.
All 2 studies with a clear result found a benefit.
In a 2026 randomized trial of 64 hemodialysis patients, the memory effect was described as marginal and small. A 2018 pilot randomized trial in 20 hemodialysis patients found that intradialytic cognitive training may prevent decline in psychomotor speed compared with standard care.
Open the Brain Games / Puzzles pageBrisk WalkingpracticeNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit.
A 2025 randomized controlled trial in 64 people with Kidney Disease found improvements in oxidative stress, lipids, and cardiovascular parameters, without adverse renal effects.
Open the Brisk Walking pageExpressive WritingpracticeNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit.
An RCT in 26 kidney transplant patients found improvements in psychological health, adherence, and renal function.
Open the Expressive Writing pageChagasupplementNot tested in people
Only tested in animals, cells or theory. Results like these often do not carry over to people.
All 3 studies with a clear result found a benefit.
In animal studies of diabetes-related kidney injury, Chaga reduced renal tubular damage scores and the area of collagen deposition. Biochemical, ultrasound, and tissue findings suggested effects that may delay progression of diabetic kidney disease.
Open the Chaga pageHot BathpracticeNot tested in people
Only tested in animals, cells or theory. Results like these often do not carry over to people.
The one study found a benefit.
An animal study involving diabetes reported improvements in kidney function, oxidative stress, and gene expression, but reduction in kidney tissue damage was not statistically significant.
Open the Hot Bath pageFastingpracticeNo benefit found
Studies looked for a benefit and did not find one.
The one study found no benefit.
The studies did not support a kidney-disease benefit: pooled analyses whose designs were not recorded found no significant change in serum creatinine or estimated glomerular filtration rate in transplant groups compared with non-fasting controls. A small serum creatinine decrease after Ramadan in uncontrolled studies was not considered convincing.
Open the Fasting page
May not suit people with this condition
Supplements and practices linked to problems for people with this condition.
IV Vitamin DrippracticeUnclear
A 2025 case report described a patient with one kidney who developed rapid inability to produce urine and became dependent on dialysis after an infusion of sterile water; the authors cited reduced kidney reserve as a contributing factor.
Open the IV Vitamin Drip pageChelation Therapy (Non-Medical)practiceUnclear
Chelated metal complexes are excreted by the kidneys, so pre-existing renal impairment increases the risk of nephrotoxicity and acute kidney injury from chelation.
Open the Chelation Therapy (Non-Medical) pageCoffee EnemapracticeUnclear
Fluid loss and electrolyte disturbances from Coffee Enema may be harder to correct in people with Kidney Disease and could worsen kidney dysfunction.
Open the Coffee Enema pageStrength TrainingpracticeUnclear
A review states that resistance training is generally not recommended for people with nephropathy because of potential risks.
Open the Strength Training page
The expert view shows every study, dose protocol and source.
What may help
Interventions recorded as helping with this condition8 listedMost likely to help, from the evidence we have
- →PracticesCyclingCertaintyMediumSourceClinical
A 12-month RCT in 114 CHD patients found lower cfPWV and improved gait speed with intradialytic cycling; no exercise-related adverse events were reported. Another RCT, involving 110 people, found improvements in quality of life and recovery time after 12 weeks, with no serious adverse events reported.
Who was studied
- People with a condition
Open CyclingStudy result
12-month RCT in 114 CHD patients showed significant reduction in cfPWV (p<0.001) and improvement in gait speed (p=0.019) with intradialytic cycling; no exercise-related adverse events.
Low probability(6)(1)(5)
- →PracticesAlternate Nostril Breathing (Nadi Shodhana)CertaintyLowSourceClinical
A randomized controlled trial involving 69 patients undergoing hemodialysis reported that breathing exercises reduced pain and improved sleep and symptoms in this group.
Who was studied
- People with a condition
- Kidney Disease
Open Alternate Nostril Breathing (Nadi Shodhana)Study result
Patients undergoing hemodialysis were the study population; breathing exercises were reported to reduce pain and improve sleep and symptoms in this group.
- →PracticesBrain Games / PuzzlesCertaintyLowSourceClinical
In a 2026 randomized trial of 64 hemodialysis patients, the memory effect was described as marginal and small. A 2018 pilot randomized trial in 20 hemodialysis patients found that intradialytic cognitive training may prevent decline in psychomotor speed compared with standard care.
Who was studied
- People with a condition
- Chronic Kidney Disease
Open Brain Games / PuzzlesStudy result
Study population of hemodialysis patients; memory effect was marginal and small.
- →PracticesBrisk WalkingCertaintyLowSourceClinical
A 2025 randomized controlled trial in 64 people with Kidney Disease found improvements in oxidative stress, lipids, and cardiovascular parameters, without adverse renal effects.
Who was studied
- People with a condition
- Kidney Disease
Open Brisk WalkingStudy result
RCT showing improvements in oxidative stress, lipids, and cardiovascular parameters without adverse renal effects.
- →PracticesExpressive WritingCertaintyLowSourceClinical
An RCT in 26 kidney transplant patients found improvements in psychological health, adherence, and renal function.
Who was studied
- People with a condition
- Kidney Disease
Open Expressive WritingStudy result
RCT showing improvements in psychological health, adherence, and renal function in kidney transplant patients
- →SupplementsChagaCertaintyLowSourceAnimal research
In animal studies of diabetes-related kidney injury, Chaga reduced renal tubular damage scores and the area of collagen deposition. Biochemical, ultrasound, and tissue findings suggested effects that may delay progression of diabetic kidney disease.
Who was studied
- People with a condition
Open ChagaStudy result
This research supports the potential application of Chaga in the clinical prevention and treatment of T2DM and diabetic nephropathy (DN)
- →PracticesHot BathCertaintyLowSourceAnimal research
An animal study involving diabetes reported improvements in kidney function, oxidative stress, and gene expression, but reduction in kidney tissue damage was not statistically significant.
Who was studied
- People with a condition
- Diabetes Type1
Open Hot BathStudy result
Animal study showing improvements in kidney function, oxidative stress, and gene expression with WWI, though histological damage reduction was not statistically significant.
Very low probability(1)(0)(1)
- →PracticesFastingCertaintyVery lowSourceClinical
The studies did not support a kidney-disease benefit: pooled analyses whose designs were not recorded found no significant change in serum creatinine or estimated glomerular filtration rate in transplant groups compared with non-fasting controls. A small serum creatinine decrease after Ramadan in uncontrolled studies was not considered convincing.
Open FastingWho was studied
- People with a condition
What to avoid
Interventions recorded as making it worse4 listedHighest probability
- →PracticesIV Vitamin DripCertaintyLowSourceClinical
A 2025 case report described a patient with one kidney who developed rapid inability to produce urine and became dependent on dialysis after an infusion of sterile water; the authors cited reduced kidney reserve as a contributing factor.
Who was studied
- People with a condition
- Hyperlipidemia
- Hypothyroidism
- Kidney Disease
Study result
Case report: patient with solitary kidney developed rapid anuria and dialysis dependency after IV infusion of sterile water; authors note diminished renal reserve as a contributing factor.
Open IV Vitamin DripRationale
Case report: patient with solitary kidney developed rapid anuria and dialysis dependency after IV infusion of sterile water; authors note diminished renal reserve as a contributing factor.
- →PracticesChelation Therapy (Non-Medical)CertaintyLowSourceReference knowledge
Chelated metal complexes are excreted by the kidneys, so pre-existing renal impairment increases the risk of nephrotoxicity and acute kidney injury from chelation.
Open Chelation Therapy (Non-Medical)Rationale
Chelated metal complexes are excreted renally; pre-existing renal impairment increases risk of nephrotoxicity and acute kidney injury from chelation.
- →PracticesCoffee EnemaCertaintyLowSourceReference knowledge
Fluid loss and electrolyte disturbances from Coffee Enema may be harder to correct in people with Kidney Disease and could worsen kidney dysfunction.
Open Coffee EnemaRationale
Fluid loss and electrolyte disturbances from enemas can be more difficult to correct and may worsen kidney dysfunction.
- →PracticesStrength TrainingCertaintyLowSourceReview
A review states that resistance training is generally not recommended for people with nephropathy because of potential risks.
Who was studied
- People with a condition
Study result
Authors state resistance training is generally not recommended in nephropathy due to potential risks.
Open Strength TrainingRationale
Authors state resistance training is generally not recommended in nephropathy due to potential risks.
How to read the evidence
Evidence tier — overall strength of the evidence for the whole compound
- StrongWell established — backed by strong, consistent human research.
- ModerateSome genuine support, but mostly from small or lower-quality studies. Promising, not proven.
- PreliminaryEarly-stage evidence — a promising hypothesis, not an established effect yet.
- LimitedVery limited evidence — treat this as a hypothesis, not proof.
- InsufficientNot enough good evidence to draw conclusions yet.
Certainty — how sure we can be that the effect is real
- Very highVery sure — strong, consistent evidence
- HighFairly sure — consistent evidence from good studies
- MediumModerately sure — new studies could change this
- LowNot sure — little or mixed evidence
- Very lowVery unsure — almost no usable evidence
Source — where the data comes from
- Meta-analysisPooled analysis of many trials — the strongest evidence
- RCTRandomized controlled trial — a strong human study design
- ClinicalA human clinical study
- Reference knowledgeFrom general health-science or pharmacology references, not a study of this exact claim
- Animal researchStudied in animals, not humans
- Community reportsAggregated user reports — anecdotal signal, not evidence
- TheoreticalMechanism-based reasoning, not yet tested
Study grade — quality of each underlying study (A best, D weakest)
- AHigh-quality — strong, consistent human trials
- BGood — solid evidence with some limitations
- CModerate — limited, small, or mixed-quality studies
- DWeak — preliminary, indirect, or animal-only
Confidence — how strongly the sources back a finding
A 0–100 score from study quality and agreement
Most supplement evidence is graded C–D. Read it as preliminary signal, not proof.
Full write-up
What is it
Kidney Disease (General) is a broad renal health condition involving kidney function. The evidence associated with this topic includes renal dysfunction and chronic kidney disease, including CKD 3–5, and considers outcomes such as kidney and patient survival, albuminuria, and other renal biomarkers. It is not a single diagnosis, so findings may not apply equally across different kidney conditions or stages. A clinician can help interpret relevance for an individual medical condition.
Evidence-backed options
Evidence for options associated with Kidney Disease (General) spans several types of findings rather than one consistent treatment effect. Astragalus was studied alongside a RAAS blocker, while Taurine was evaluated as part of adjunctive NAC+taurine therapy. Sodium Bicarbonate was assessed for metabolic acidosis in people with CKD 3–5 without advanced stages of chronic heart failure, and Vitamin E was studied with hydration for CIAKI in people with renal impairment. These results relate to particular clinical settings and should not be generalized to every form or stage of kidney disease.
The reported outcomes also vary. Findings include kidney and patient survival, albuminuria and other renal biomarkers, uremic toxins and inflammatory markers, kidney-failure progression, and treatment-related changes in body composition or systemic metabolism. Coenzyme Q10 was used for six weeks and improved markers of systemic mitochondrial metabolism and lipid profiles, but not VO₂ peak or total work efficiency. Long-term Creatine supplementation in hemodialysis patients enhanced FFM and SMMI but did not attenuate the MIS.
The evidence is thinner for several other options. Apple Cider Vinegar, Chaga, and Glycine are supported by animal research, while some clinical findings concern planning future studies or symptom burden rather than established improvement in kidney function. Saffron Extract findings specifically call for larger, longer-duration trials among patients with renal dysfunction. Across the options, a common onset of benefit is not established, and the information provided does not supply a shared dose or treatment duration. Anyone considering these options for a medical condition should discuss the relevant evidence and clinical context with a clinician.
What to avoid
These items are flagged mainly because reduced kidney function can make electrolyte, fluid, mineral, or supplement-metabolite changes harder to control. Aloe Vera, Sea Moss (Irish Moss), Coffee Enema, and Tribulus Terrestris may affect this balance: aloe latex may cause hypokalemia, sea moss may provide minerals that accumulate, enemas may cause fluid loss, and Tribulus Terrestris may have diuretic effects. These changes may worsen kidney dysfunction or create electrolyte disturbances.
Cod Liver Oil, Iodine, and Vitamin B3 (Niacin) raise concerns related to impaired renal handling. Cod Liver Oil provides vitamin D, which may worsen hypercalcemia when vitamin D metabolism and calcium excretion are impaired. Iodine may accumulate when renal excretion is reduced, with possible thyroid effects. Niacin metabolites are excreted through the kidneys and may accumulate, increasing toxicity and adverse effects; dose adjustment is noted as necessary.
Acetyl-L-Carnitine (ALCAR), Inositol, MSM (Methylsulfonylmethane), Chondroitin Sulfate, and L-Theanine are flagged because the kidney helps clear them or their metabolites. Accumulation may be more likely with renal impairment. For Inositol, the concern specifically applies to high-dose use at 12g+; for L-Theanine, accumulation may increase the risk of excessive drowsiness or hypotension.
Oregano Oil, Quercetin, Tongkat Ali (Eurycoma), and Choline (Bitartrate) involve additional concerns, including reduced metabolite clearance, possible oxalate load, kidney stress from concentrated herbal extracts, or increased TMAO levels. The rationale for Choline (Bitartrate) is theoretical, and the clinical significance of MSM clearance concerns is unclear. Anyone with kidney disease should review these products with a clinician before use.