Three wellness extremes can injure kidneys: supplement contamination or megadoses, concentrated high-oxalate diets, and severe muscle injury from exertion.
CHAPTERS
00:00 When wellness habits become risky
01:17 Supplement safety and regulation
02:58 Heavy metals and the protein-powder report
04:02 Vitamin megadoses
05:42 Reviewing and choosing supplements
06:32 Protein intake and kidney disease
07:58 Green smoothies, oxalates and kidney injury
10:26 Detox drinks, electrolytes and excess water
12:20 Overtraining, rhabdomyolysis and NSAIDs
15:36 Training, hydration and a safer routine
CONTEXT AND CLARIFICATIONS
The smoothie story is a published case report: a 65-year-old woman developed oxalate nephropathy after a 10-day cleanse. Prior gastric bypass and prolonged antibiotics were predisposing factors. This does not establish that ordinary smoothies or whole vegetables cause dialysis in most people.
Clean Label Project reported 47% of 160 tested protein powders above at least one selected regulatory threshold; 21% were over twice the Prop 65 lead level. These are results from that sample, not proof that half of all powders cause kidney injury. Prop 65 warning thresholds are not a diagnosis of poisoning.
Review supplement doses and interactions with your clinician. Certification scope differs; no seal guarantees CKD safety.
The approximately doubled vitamin C stone-risk result came from an observational study of Swedish men using high-dose supplements, not a randomized trial proving a universal effect. Lack of the same association in women does not make megadoses harmless. Excess vitamin D can cause hypercalcemia and kidney injury.
Protein targets differ by CKD stage, dialysis, nutritional status and activity. KDIGO generally suggests about 0.8 g/kg/day in adults with CKD G3–G5 and avoiding high intake above 1.3 g/kg/day; dialysis often needs more. Individualize with a renal dietitian.
Boiling and discarding the water can lower soluble oxalate, but the amount varies by vegetable and preparation. A two-minute boil does not guarantee a 50–80% reduction. Normal dietary calcium with meals may reduce oxalate absorption; do not add calcium supplements without advice.
A liter per hour is not a safe hydration target for everyone. CKD, heart failure, medicines and exertion change water handling. Follow any fluid restriction; excessive water can cause dangerous low sodium.
Rhabdomyolysis has many causes, and it does not always cause kidney failure. The video's “100 per day” should not be interpreted as 100 exercise-induced kidney failures daily. The Navy's 12.7/100,000 figure concerns exertional rhabdomyolysis, not all AKI.
An 89-person ultramarathon trial found AKI in 52% with ibuprofen vs 34% with placebo, with wide uncertainty. NSAIDs can increase risk during endurance exercise, especially with CKD or dehydration. Individualize training, recovery, sauna and fasting.
GET HELP
Severe muscle pain or weakness beyond expected soreness, swelling or tea/cola-colored urine after exertion needs prompt medical assessment. Do not wait for every symptom or try to treat suspected rhabdomyolysis by forcing water at home.
WATCH NEXT
Supplements I tell kidney patients to avoid: The Supplements I Tell Kidney Patients to ...
Water intoxication and safe limits: Water Intoxication is Real: How Much Water...
REFERENCES
Smoothie case report: https://pubmed.ncbi.nlm.nih.gov/29203...
Clean Label Project's report: https://cleanlabelproject.org/protein...
Vitamin C cohort: https://pubmed.ncbi.nlm.nih.gov/23381...
Vegetable cooking and oxalate study: https://pubmed.ncbi.nlm.nih.gov/15826...
Ibuprofen ultramarathon trial: https://pubmed.ncbi.nlm.nih.gov/28679...
KDIGO CKD guideline: https://kdigo.org/guidelines/ckd-eval...
CDC rhabdomyolysis symptoms: https://www.cdc.gov/niosh/rhabdo/sign...
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The information in this content is for educational purposes only and does not constitute medical advice. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay seeking it because of something you have seen in this content. The views expressed here are my own and do not represent the views of my employer or any affiliated institution.
#KidneyHealth #Wellness #KidneyStones
Three wellness extremes can injure kidneys: supplement contamination or megadoses, concentrated high-oxalate diets, and severe muscle injury from exertion.
CHAPTERS
00:00 When wellness habits become risky
01:17 Supplement safety and regulation
02:58 Heavy metals and the protein-powder report
04:02 Vitamin megadoses
05:42 Reviewing and choosing supplements
06:32 Protein intake and kidney disease
07:58 Green smoothies, oxalates and kidney injury
10:26 Detox drinks, electrolytes and excess water
12:20 Overtraining, rhabdomyolysis and NSAIDs
15:36 Training, hydration and a safer routine
CONTEXT AND CLARIFICATIONS
The smoothie story is a published case report: a 65-year-old woman developed oxalate nephropathy after a 10-day cleanse. Prior gastric bypass and prolonged antibiotics were predisposing factors. This does not establish that ordinary smoothies or whole vegetables cause dialysis in most people.
Clean Label Project reported 47% of 160 tested protein powders above at least one selected regulatory threshold; 21% were over twice the Prop 65 lead level. These are results from that sample, not proof that half of all powders cause kidney injury. Prop 65 warning thresholds are not a diagnosis of poisoning.
Review supplement doses and interactions with your clinician. Certification scope differs; no seal guarantees CKD safety.
The approximately doubled vitamin C stone-risk result came from an observational study of Swedish men using high-dose supplements, not a randomized trial proving a universal effect. Lack of the same association in women does not make megadoses harmless. Excess vitamin D can cause hypercalcemia and kidney injury.
Protein targets differ by CKD stage, dialysis, nutritional status and activity. KDIGO generally suggests about 0.8 g/kg/day in adults with CKD G3–G5 and avoiding high intake above 1.3 g/kg/day; dialysis often needs more. Individualize with a renal dietitian.
Boiling and discarding the water can lower soluble oxalate, but the amount varies by vegetable and preparation. A two-minute boil does not guarantee a 50–80% reduction. Normal dietary calcium with meals may reduce oxalate absorption; do not add calcium supplements without advice.
A liter per hour is not a safe hydration target for everyone. CKD, heart failure, medicines and exertion change water handling. Follow any fluid restriction; excessive water can cause dangerous low sodium.
Rhabdomyolysis has many causes, and it does not always cause kidney failure. The video's “100 per day” should not be interpreted as 100 exercise-induced kidney failures daily. The Navy's 12.7/100,000 figure concerns exertional rhabdomyolysis, not all AKI.
An 89-person ultramarathon trial found AKI in 52% with ibuprofen vs 34% with placebo, with wide uncertainty. NSAIDs can increase risk during endurance exercise, especially with CKD or dehydration. Individualize training, recovery, sauna and fasting.
GET HELP
Severe muscle pain or weakness beyond expected soreness, swelling or tea/cola-colored urine after exertion needs prompt medical assessment. Do not wait for every symptom or try to treat suspected rhabdomyolysis by forcing water at home.
WATCH NEXT
Supplements I tell kidney patients to avoid: The Supplements I Tell Kidney Patients to ...
Water intoxication and safe limits: Water Intoxication is Real: How Much Water...
REFERENCES
Smoothie case report: https://pubmed.ncbi.nlm.nih.gov/29203...
Clean Label Project's report: https://cleanlabelproject.org/protein...
Vitamin C cohort: https://pubmed.ncbi.nlm.nih.gov/23381...
Vegetable cooking and oxalate study: https://pubmed.ncbi.nlm.nih.gov/15826...
Ibuprofen ultramarathon trial: https://pubmed.ncbi.nlm.nih.gov/28679...
KDIGO CKD guideline: https://kdigo.org/guidelines/ckd-eval...
CDC rhabdomyolysis symptoms: https://www.cdc.gov/niosh/rhabdo/sign...
JOIN THE CHANNEL
Become a member for members-only live Q&As and early access:
@seanhashmimd
SUBSCRIBE
@seanhashmimd
NEWSLETTER
Free weekly evidence based health guidance: https://selfprinciple.org/newsletter/
CONNECT
Dr. Sean Hashmi | Website: https://www.seanhashmimd.com/
SELF Principle | Nonprofit: https://selfprinciple.org/
Instagram: Instagram: seanhashmimd
Facebook: Facebook: seanhashmimd
The information in this content is for educational purposes only and does not constitute medical advice. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay seeking it because of something you have seen in this content. The views expressed here are my own and do not represent the views of my employer or any affiliated institution.
#KidneyHealth #Wellness #KidneyStones
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