Coffee vs Green Tea: Which Is Better for Kidneys?

Q: Which has more potassium, coffee or green tea?

By weight, Coffee provides 54 mg of Potassium per 100 g; Green Tea provides 8 mg. That is the main mineral gap between them.

Q: Is coffee or green tea better for kidney disease?

Under the daily limits used on this site, Coffee falls in the Kidney-friendly tier and Green Tea in the Kidney-friendly tier. Lower tiers mean a smaller share of the daily allowance per 100 g.

Q: What is the difference between coffee and green tea for a CKD diet?

For a CKD diet, the key gap is Potassium — <1% of the limit for Green Tea and 3% for Coffee. Check each food page for phosphorus, sodium and potassium together.

Looking at the three rated minerals, Coffee lands in the Kidney-friendly tier and Green Tea in the Kidney-friendly tier. The biggest gap is Potassium — Green Tea sits at <1% of the daily limit versus 3% for Coffee.

Coffee
Kidney-friendly Green Tea
Kidney-friendly

Phosphorus

1 mg

<1%

0 mg

<1%

Sodium

2 mg

<1%

1 mg

<1%

Potassium

54 mg

8 mg

<1%

About Coffee

How to think about Beverages: Coffee is worth a closer look - Most beverages are low in mineral density, but colas with phosphoric acid and sugary drinks are not kidney-friendly - additive phosphorus absorbs at nearly 100%, often alongside a lot of added sugar.

About Green Tea

Green Tea is a common member of Beverages. Most beverages are low in mineral density, but colas with phosphoric acid and sugary drinks are not kidney-friendly - additive phosphorus absorbs at nearly 100%, often alongside a lot of added sugar. This helps when choosing similar foods.

Practical tips

If you are managing mineral intake: Avoid colas with phosphoric acid additives; choose water, black coffee or tea as low-risk options. How to eat it more safely: Avoid colas with phosphoric acid additives; choose water, black coffee or tea as low-risk options.

See Coffee details See Green Tea details

Frequently asked questions

Which has more potassium, coffee or green tea?

By weight, Coffee provides 54 mg of Potassium per 100 g; Green Tea provides 8 mg. That is the main mineral gap between them.

Is coffee or green tea better for kidney disease?

Under the daily limits used on this site, Coffee falls in the Kidney-friendly tier and Green Tea in the Kidney-friendly tier. Lower tiers mean a smaller share of the daily allowance per 100 g.

What is the difference between coffee and green tea for a CKD diet?

For a CKD diet, the key gap is Potassium — <1% of the limit for Green Tea and 3% for Coffee. Check each food page for phosphorus, sodium and potassium together.