7 doctors weighed in:
I'm taking 400 mg green tea supplements. Will this cause me kidney stones?
7 doctors weighed in

3 doctors agree
In brief: Tea/Oxalates/stones
Tea is high in oxalic acid and could increase urinary excretion of oxalates resulting in ca++ oxalate stones.
Hydration to achieve a urinary output > 2000ml/24 hours and avoiding salt/sodium may help to mitigate this situation and decrease crystallization/stone formation. Urinary acidifiers may also help..

In brief: Tea/Oxalates/stones
Tea is high in oxalic acid and could increase urinary excretion of oxalates resulting in ca++ oxalate stones.
Hydration to achieve a urinary output > 2000ml/24 hours and avoiding salt/sodium may help to mitigate this situation and decrease crystallization/stone formation. Urinary acidifiers may also help..
Dr. Stephen Chinn
Dr. Stephen Chinn
Thank
Dr. Terence Chapman
Urology - Oncology
2 doctors agree
In brief: Not likely
Black tea contains oxalate and excessive levels of oxalate intake is associated with increased risk of calcium oxalate stone formation.
Green tea has not been associated with increased risk of stone formation.

In brief: Not likely
Black tea contains oxalate and excessive levels of oxalate intake is associated with increased risk of calcium oxalate stone formation.
Green tea has not been associated with increased risk of stone formation.
Dr. Terence Chapman
Dr. Terence Chapman
Thank
Get help from a real doctor now
Dr. William Forsythe
Board Certified, Emergency Medicine
23 years in practice
171K people helped
Continue
107,000 doctors available
Read more answers from doctors