Herbal tea has become a go-to drink for those who want a soothing, caffeine-free beverage that also offers potential health benefits. From calming chamomile to antioxidant-rich hibiscus, the choices are endless. Many people enjoy several cups a day, believing it’s a healthier alternative to coffee or traditional tea.

However, a growing question is surfacing among health-conscious tea drinkers: Can herbal tea cause kidney stones? While most herbal teas are safe for the average person, certain ingredients and consumption habits can contribute to kidney stone formation. Let’s explore the science behind it and learn how to enjoy herbal tea without harming your kidneys.

Understanding Kidney Stones

Kidney stones are hard, crystal-like deposits that form in your kidneys when minerals and salts bind together in concentrated urine. They can vary in size, from tiny grains to larger, more painful stones that may require medical removal.

The main causes of kidney stones include:

• Dehydration – Not drinking enough water concentrates urine and promotes stone formation.

• High oxalate intake – Oxalates are compounds found in many foods and drinks that can bind with calcium to form stones.

• Excessive sodium – A high-salt diet increases calcium in urine, raising kidney stone risk.

• Family history and medical conditions – Some people are genetically predisposed to kidney stones.

Herbal Tea and Kidney Health

Herbal tea is made from dried herbs, flowers, roots, or fruits, and does not technically contain tea leaves from the Camellia sinensis plant. This means it’s naturally caffeine-free though some blends may still contain added caffeine.

The kidney stone concern arises because certain herbs are naturally high in oxalates or act as strong diuretics. Oxalates can contribute to calcium oxalate stones the most common type of kidney stone while excessive diuretic use can lead to dehydration, another major risk factor.

Examples of herbal teas that may contain higher levels of oxalates or affect kidney health include:

• Hibiscus tea – Rich in antioxidants but can be high in oxalates.

• Parsley tea – Often used for cleansing, but its diuretic effect may cause dehydration if overused.

• Dandelion tea – Supports liver and kidney function but may overwork the kidneys when consumed in excess.

That said, not all herbal teas are risky. Many, such as chamomile or rooibos, are naturally low in oxalates and can be enjoyed freely in moderation.

Risk Factors When Drinking Herbal Tea

Most people can drink herbal tea without any kidney issues. However, you may be at higher risk if:

• You have a history of kidney stones.

• You consume large amounts of high-oxalate herbs daily.

• You rely on herbal diuretics without increasing your water intake.

• You have chronic kidney disease or other urinary tract issues.

If you’re in one of these groups, it’s worth being mindful of your herbal tea choices and portion sizes.

How to Drink Herbal Tea Safely

Enjoying herbal tea while protecting your kidneys is absolutely possible here’s how:

1. Rotate your tea types – Don’t stick to one herb all the time. Mix in low-oxalate teas like rooibos, chamomile, or peppermint.

2. Stay hydrated – For every cup of tea, drink a glass of plain water to maintain fluid balance.

3. Moderation is key – Two to three cups per day is generally safe for most people.

4. Check ingredient lists – Some herbal blends contain added tea leaves or caffeine, which may affect kidney function in high amounts.

5. Consult your doctor – Especially if you have a history of kidney stones or kidney disease.

Better Alternatives for People Prone to Kidney Stones

If you’re at risk but still want a warm, healthy beverage, opt for herbal infusions that support kidney health without excessive oxalates. Good options include:

• Chamomile tea – Calming, antioxidant-rich, and gentle on the kidneys.

• Rooibos tea – Naturally caffeine-free and low in oxalates.

• Ginger tea – Helps with digestion and inflammation without burdening the kidneys.

For those who also want to maintain a healthy weight while protecting their kidneys, some specialized blends like All Day Slimming Tea can be a great option. These teas combine gentle herbs that promote metabolism and detoxification without relying on high-oxalate ingredients, making them a smart choice for daily wellness routines.

Conclusion

So, can herbal tea cause kidney stones? The answer is yes, but only in certain cases. Overconsumption of high-oxalate herbs, dehydration from diuretic teas, or pre-existing kidney issues can increase your risk. For most people, herbal tea in moderation is perfectly safe and even beneficial.