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Overview InformationGuava is a tropical fruit produced by the guava tree. Large amounts of the guava fruit are produced in Brazil, Colombia, Venezuela, and Mexico. The fruit is commonly eaten fresh or made into beverages, jams, and other foods. The fruit, leaf, and fruit juice are used as medicine.
People take guava fruit by mouth for many conditions, including colic, high blood pressure, diarrhea, diabetes, cough, and cancer.
How does it work?The guava FRUIT is a source of vitamin C, fiber, and other substances that act like antioxidants. Antioxidants slow down or stop the harmful effects of oxidation. Oxidation is a chemical reaction in which oxygen is added to a chemical element or compound. Guava LEAVES also contain chemicals with antioxidant and other effects. It is not known how guava works for medical conditions.
Uses & Effectiveness
Insufficient Evidence for
- High blood pressure. Early research shows that eating large amounts of guava daily in place of high-fat foods for 12 weeks lowers blood pressure in people with high blood pressure.
- High cholesterol.
- Heart disease.
- Weight loss.
- Other conditions.
Side Effects & SafetyGuava fruit is LIKELY SAFE when eaten as a food.
Guava is POSSIBLY SAFE when used as a medicine for up to 12 weeks.
Special Precautions & Warnings:Pregnancy and breast-feeding: Guava is safe when eaten as food, but there's not enough information to know if it's safe in the larger amounts that are used as medicine. If you are pregnant or breast-feeding, stick with food amounts until more is known.
We currently have no information for GUAVA Interactions.
The appropriate dose of guava 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 guava. 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.
- Belemtougri RG, Constantin B, Cognard C, et al. Effects of two medicinal plants Psidium guajava L. (Myrtaceae) and Diospyros mespiliformis L. (Ebenaceae) leaf extracts on rat skeletal muscle cells in primary culture. Zhejiang Univ Sci B 2006;7:56-63. View abstract.
- Conde Garcia EA, Nascimento VT, Santiago Santos AB. Inotropic effects of extracts of Psidium guajava L. (guava) leaves on the guinea pig atrium. Braz J Med Biol Res 2003;36:661-8. View abstract.
- Correa MG, Couto JS, Teodoro AJ. Anticancer Properties of Psidium guajava - a Mini-Review. Asian Pac J Cancer Prev. 2016;17(9):4199-4204. 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
- Hassimotto NM, Genovese MI, Lajolo FM. Antioxidant activity of dietary fruits, vegetables, and commercial frozen fruit pulps. J Agric Food Chem 2005;53:2928-35. View abstract.
- Jimenez-Escrig A, Rincon M, Pulido R, Saura-Calixto F. Guava fruit (Psidium guajava L.) as a new source of antioxidant dietary fiber. J Agric Food Chem 2001;49:5489-93. View abstract.
- Kumari S, Rakavi R, Mangaraj M. Effect of Guava in Blood Glucose and Lipid Profile in Healthy Human Subjects: A Randomized Controlled Study. J Clin Diagn Res. 2016;10(9):BC04-BC07. View abstract.
- Mercadante AZ, Steck A, Pfander H. Carotenoids from guava (Psidium guajava l.): isolation and structure elucidation. J Agric Food Chem 1999;47:145-51. View abstract.
- Obi M, Miyazaki Y, Yokozeki H, Nishioka K. Allergic contact dermatitis due to guava tea. Contact Dermatitis. 2001;44(2):116-7. View abstract.
- Qian H, Nihorimbere V. Antioxidant power of phytochemicals from Psidium guajava leaf. J Zhejiang Univ Sci 2004;5:676-83. View abstract.
- Rahmat A, Abu Bakar MF, Faezah N, Hambali Z. The effects of consumption of guava (psidium guajava) or papaya (carica papaya) on total antioxidant and lipid profile in normal male youth. Asia Pac J Clin Nutr 2004;13(Suppl):S106.. View abstract.
- Singh RB, Rastogi SS, Singh R, Ghosh S, Niaz MA. Effects of guava intake on serum total and high-density lipoprotein cholesterol levels and on systemic blood pressure. Am J Cardiol. 1992;70(15):1287-91. View abstract.
- Thaptimthong T, Kasemsuk T, Sibmooh N, Unchern S. Platelet inhibitory effects of juices from Pachyrhizus erosus L. root and Psidium guajava L. fruit: a randomized controlled trial in healthy volunteers. BMC Complement Altern Med. 2016;16:269. View abstract.
- Yusof RM, Said M. Effect of high fibre fruit (Guava - psidium guajava L.) on the serum glucose level in induced diabetic mice. Asia Pac J Clin Nutr 2004;13(Suppl):S135. View abstract.