Category

Synonyms

Apiaceae (family), Pastinaca sativa L., sweet parsnip, wild parsnip.

Note: This monograph does not include information on cow parsnip (Heracleum maximum) or wild parsnip (Angelica archanglica).

Background

Like their close relative the carrot, parsnip roots are used for food. The Romans thought that the parsnip was an aphrodisiac. There is very little research available on medicinal uses for parsnip. One laboratory study indicates that polyacetylenes in parsnip may be cytotoxic (damaging to cells). However, currently, there is insufficient evidence in humans to support the use of parsnip for any indication.

Evidence

Tradition

Dosing

Adults (18 years and older):

There is no proven safe or effective dose for parsnip in adults.

Children (younger than 18 years):

There is no proven safe or effective dose for parsnip in children.

Safety

Allergies

Avoid in individuals with a known allergy or hypersensitivity to parsnip (Pastinaca sativa). Parsnip has caused skin lesions and rash. Individuals allergic to birch pollen may have cross- sensitivity to parsnip.

Side Effects and Warnings

There are very few reports of parsnip and its adverse effects. Of the available literature, there are a few reports of phytodermatitis and phytophototoxicity in patients handling or ingesting parsnip. Parsnip has caused skin lesions and rash. Use cautiously in patients who are photosensitive or taking agents that may increase the chance of photosensitivity.

Pregnancy and Breastfeeding

Parsnip, as a medicinal agent, is not recommended in pregnant or breastfeeding women due to a lack of available scientific research.