Question 1

How does scurvy grass work to prevent scurvy?

Accepted Answer

Scurvy grass prevents scurvy through its exceptionally high vitamin C (ascorbic acid) content, making it one of the richest natural vitamin C sources in Northern Europe. Vitamin C is essential for collagen synthesis, wound healing, and antioxidant protection. The herb also contains glucosinolates and flavonoids that may support its anti-scorbutic effects. Historical evidence from Arctic explorers and sailors demonstrates its effectiveness, though modern clinical trials are limited (Evidence Level C).

Question 2

Does scurvy grass interact with any medications?

Accepted Answer

There are no well-documented significant drug interactions for scurvy grass. However, due to its high vitamin C content, excessive consumption could theoretically affect the absorption or metabolism of certain medications. The glucosinolate content may potentially affect thyroid function when consumed in very large quantities, similar to other cruciferous vegetables. Patients taking anticoagulants or thyroid medications should consult a healthcare provider before using concentrated preparations (Evidence Level C).

Question 3

How much scurvy grass should I take for vitamin C?

Accepted Answer

The traditional adult dosage for scurvy grass as a vitamin C source is 30-50 grams of fresh herb daily. This can be consumed as a food, added to salads, or prepared as a fresh plant juice. The herb is typically used fresh rather than dried, as vitamin C degrades with drying and storage. For general nutritional purposes, smaller culinary amounts are sufficient. There are no standardized extract preparations with established dosing (Evidence Level C).

Question 4

Is scurvy grass safe during pregnancy?

Accepted Answer

Scurvy grass is generally considered safe during pregnancy when consumed in normal food amounts. The herb's primary active compound is vitamin C, which is essential during pregnancy for fetal development and maternal health. No specific contraindications exist for pregnancy use. However, pregnant women should avoid excessive consumption, as very high doses may cause gastrointestinal upset. As with any herbal supplement during pregnancy, consult a qualified healthcare provider before use (Evidence Level C).

Question 5

What is scurvy grass used for medicinally?

Accepted Answer

Scurvy grass is primarily used as a natural source of vitamin C to prevent and treat scurvy, a vitamin C deficiency disease. Historically, sailors and Arctic explorers relied on this coastal plant to survive long voyages without fresh produce. Beyond its anti-scorbutic properties, scurvy grass functions as a digestive bitter, stimulating appetite and supporting healthy digestion. The herb has traditional use as a general tonic and for supporting immune function (Evidence Level C, Traditional).

Question 6

What are the side effects of eating scurvy grass?

Accepted Answer

Scurvy grass is well-tolerated by most people when consumed in normal food amounts. The primary reported side effect is gastrointestinal upset, including nausea and stomach discomfort, particularly when consumed in excess. This is typically due to the herb's bitter glucosinolate compounds and high vitamin C content. The fresh leaves have a sharp, peppery taste similar to watercress. No serious adverse effects have been documented in traditional use (Evidence Level C, Traditional).

Scurvy Grass

Sources & Citations

Tansy

Origanum Minutiflorum

Ixbut

Summary

Background

Traditional uses

Active compounds

Mechanism of action

Clinical evidence

Safety & adverse effects

Evidence summary

PubMed sources

Government sources