Who Shouldn't Take Dandelion?

Dandelion is perhaps best known as a weed-- this hardy, adaptable flower grows on lawns, roadsides and abandoned fields in temperate climates throughout the world. Despite its common reputation as an undesirable plant, dandelion possesses powerful medicinal properties. Dandelion root may help to detoxify the liver and kidneys, and it can help to prevent urinary tract infections in some susceptible individuals.

The leaves, roots and flowers of the dandelion plant are all safe when used in moderate amounts by healthy adults. However, there are some dandelion root contraindications. If you are in any high-risk category, do not take dandelion root or any other supplement made from dandelion.

Pregnant Women

No studies have evaluated dandelion's safety for pregnant women, so obstetricians and midwives generally advise women to avoid it. There is not enough evidence to suggest that dandelion root's benefits outweigh its risks during pregnancy. In theory, it can contribute to miscarriage or preterm labor, and it may affect a developing fetus. Err on the side of caution-- do not take any herbal supplement during pregnancy except under the guidance of your health care provider.

People with Dandelion Allergies

If you are allergic to dandelions, you should not take dandelion root or any other dandelion supplements. It may trigger an episode of anaphylaxis, a life-threatening allergic reaction. Dandelion allergy may be slightly more common in people who are also allergic to other members of the daisy family, such as ragweed and chrsyanthemum. A skin-test can determine if you are allergic to dandelion.

People Taking Lithium

If you use lithium, a drug used to treat medical conditions including bipolar disorder, you should not use dandelion root. Dandelion root acts as a diuretic, increasing the amount of urine produced by the body. However, it can reduce the body's ability to get rid of lithium and its by-products. This could lead to serious side effects. There may be other drug interactions with dandelion root. Consult your health care provider before taking dandelion if you use any prescription or over-the-counter drug.