Adam's Needle, Aloe Yucca, Arbre de Josué, Bear Grass, Dagger Plant, Joshua Tree, Mohave Yucca, Mojave Yucca, Our-Lord's-Candle, Soapweed, Spanish Bayonet, Yuca, Yucca aloifolia, Yucca angustifolia, Yucca arborescens, Yucca brevifolia, Yucca filamentosa, Yucca glauca, Yucca mohavensis, Yucca schidigera, Yucca whipplei.
Yucca is the common name for the more than 40 species of plants in the Yucca genus. The root of the non-flowering plant is used to make medicine.
Yucca is used for osteoarthritis, high blood pressure, migraine headaches, inflammation of the intestine (colitis), high cholesterol, stomach disorders, diabetes, poor circulation, and liver and gallbladder disorders.
How does it work?
Insufficient Evidence to Rate Effectiveness for...
- Arthritis. Early research suggests that a yucca extract might reduce symptoms of osteoarthritis such as pain, swelling, and stiffness.
- High blood pressure. Taking yucca by mouth in combination with proper diet and exercise might help lower blood pressure.
- High cholesterol and high triglycerides. Taking yucca by mouth in combination with a low-fat diet and exercise seems to help lower blood fats, including cholesterol and triglycerides. Also, taking yucca extract along with quillaia extract by mouth for 4 weeks seems to decrease cholesterol in people with high cholesterol.
- Digestive disorders.
- Poor blood circulation.
- Skin problems.
- Other conditions.
Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).
Yucca is LIKELY SAFE when consumed in the amounts normally found in foods. Yucca is POSSIBLY SAFE when taken by mouth short-term. It can cause side effects such as stomach upset, bitter taste, nausea, and vomiting.
Not enough is known about the safety of taking yucca by mouth long-term or applying it to the skin.
Special Precautions & Warnings:Pregnancy and breast-feeding: There is not enough reliable information about the safety of taking yucca if you are pregnant or breast-feeding. Stay on the safe side and avoid use.
The appropriate dose of yucca depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for yucca. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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Balestrieri, C., Felice, F., Piacente, S., Pizza, C., Montoro, P., Oleszek, W., Visciano, V., and Balestrieri, M. L. Relative effects of phenolic constituents from Yucca schidigera Roezl. bark on Kaposi's sarcoma cell proliferation, migration, and PAF synthesis. Biochem Pharmacol 5-14-2006;71(10):1479-1487. View abstract.
Favel, A., Kemertelidze, E., Benidze, M., Fallague, K., and Regli, P. Antifungal activity of steroidal glycosides from Yucca gloriosa L. Phytother.Res 2005;19(2):158-161. View abstract.
Hayashi, K., Nishino, H., Niwayama, S., Shiraki, K., and Hiramatsu, A. Yucca leaf protein (YLP) stops the protein synthesis in HSV-infected cells and inhibits virus replication. Antiviral Res 1992;17(4):323-333. View abstract.
Kim, S. W., Park, S. K., Kang, S. I., Kang, H. C., Oh, H. J., Bae, C. Y., and Bae, D. H. Hypocholesterolemic property of Yucca schidigera and Quillaja saponaria extracts in human body. Arch Pharm.Res 2003;26(12):1042-1046. View abstract.
Mahillon, V., Saussez, S., and Michel, O. High incidence of sensitization to ornamental plants in allergic rhinitis. Allergy 2006;61(9):1138-1140. View abstract.
Olas, B., Wachowicz, B., Majsterek, I., Blasiak, J., Stochmal, A., and Oleszek, W. Antioxidant properties of trans-3,3',5,5'-tetrahydroxy-4'-methoxystilbene against modification of variety of biomolecules in human blood cells treated with platinum compounds. Nutrition 2006;22(11-12):1202-1209. View abstract.
Poljacki, M., Paravina, M., Jovanovic, M., Subotic, M., and Duran, V. [Contact allergic dermatitis caused by plants]. Med Pregl. 1993;46(9-10):371-375. View abstract.
Kanerva, L., Estlander, T., Petman, L., Makinen-Kiljunen, S. Occupational allergic contact urticaria to yucca (Yucca aloifolia), weeping fig (Ficus benjamina), and spathe flower (Spathiphyllum wallisii). Allergy. 2001;56(10): 1008-11.View abstract.
Electronic Code of Federal Regulations. Title 21. Part 182 -- Substances Generally Recognized As Safe. Available at: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=182
Tyler VE, Brady LR, Robbers JE. Pharmacognosy. 9th ed. Philadelphia, PA: Lea & Febiger, 1988.