Lettuce vs Asparagus: Which Is Better for Kidneys?

Q: Which has more phosphorus, lettuce or asparagus?

Per 100 g, lettuce contains 33 mg and asparagus contains 52 mg of phosphorus.

Q: Is lettuce or asparagus better for kidney disease?

Based on CKD stage 3-4 daily limits, lettuce is rated kidney-friendly and asparagus is rated kidney-friendly. Ratings reflect mineral load per 100 g only — individual advice should come from your healthcare team.

Q: What is the main difference for a CKD diet?

The largest difference is phosphorus: lettuce sits at 3% of the daily limit versus 5% for asparagus. See each food page for the full mineral profile.

For a kidney-friendly diet the question is mineral load: Lettuce is Kidney-friendly, Asparagus is Kidney-friendly. The biggest gap is Phosphorus — Lettuce sits at 3% of the daily limit versus 5% for Asparagus.

Lettuce
Kidney-friendly Asparagus
Kidney-friendly

Phosphorus

33 mg

52 mg

Sodium

5 mg

<1%

2 mg

<1%

Potassium

238 mg

12%

202 mg

10%

See Lettuce details See Asparagus details

Frequently asked questions

Which has more phosphorus, lettuce or asparagus?

Per 100 g, lettuce contains 33 mg and asparagus contains 52 mg of phosphorus.

Is lettuce or asparagus better for kidney disease?

Based on CKD stage 3-4 daily limits, lettuce is rated kidney-friendly and asparagus is rated kidney-friendly. Ratings reflect mineral load per 100 g only — individual advice should come from your healthcare team.

What is the main difference for a CKD diet?

The largest difference is phosphorus: lettuce sits at 3% of the daily limit versus 5% for asparagus. See each food page for the full mineral profile.