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Berria R, Gastaldelli A, Lucidi S, Belfort R, De Filippis E, Easton C, Brytzki R, Cusi K, Jovanovic L, DeFronzo R. Reduction in hematocrit level after pioglitazone treatment is correlated with decreased plasma free testosterone level, not hemodilution, in women with polycystic ovary syndrome. Clin Pharmacol Ther. 2006;80(2):105–14. de Sousa, D. P., Farias Nobrega, F. F., and de Almeida, R. N. Influence of the chirality of (R)-(-)- and (S)-(+)-carvone in the central nervous system: a comparative study. Chirality 5-5-2007;19(4):264-268. View abstract. Speroff L, Fritz MA. Clinical gynecologic endocrinology and infertility, 8 edn. lippincott Williams & wilkins; 2005. Cappalletti S, et al. (2015). Caffeine: cognitive and physical performance enhancer or psychoactive drug? Vázquez-Fresno R, Rosana ARR, Sajed T, Onookome-Okome T, Wishart NA, Wishart DS. Herbs and spices- biomarkers of intake based on human intervention studies - a systematic review. Genes Nutr. 2019;14:18. doi:10.1186/s12263-019-0636-8
Akdogan, M., Kilinc, I., Oncu, M., Karaoz, E., and Delibas, N. Investigation of biochemical and histopathological effects of Mentha piperita L. and Mentha spicata L. on kidney tissue in rats. Hum.Exp Toxicol. 2003;22(4):213-219. View abstract. People use the plant more commonly for medicinal and therapeutic treatment, and it contains several vitamins, antioxidants and essential nutrients. Chances are your grandmother believed in old spearmint remedies to ‘cure’ sore throat, arthritis, cramps, toothaches, bad breath, the common cold, diarrhea, muscle pain, headache, fatigue and overall stress. The most common benefits are for hirsutism, irritable bowel syndrome (IBS) and osteoporosis. What Does Spearmint Come From? The decrease in the level of estradiol could be due to the presence of lignan in flaxseed that may lead to a rise in SHBG production which in turn decreases the level of free estradiol [ 19]. Moreover, lignan can inhibit aromatase activity thereby decrease estradiol production. Other researches have reported the same results in menopause women [ 31]. High levels of male hormones, or androgens, are linked to an overgrowth of facial hair in women ( 9).
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Connelly A, et al. (2014). High-rosmarinic acid spearmint tea in the management of knee osteoarthritis symptoms.
As we’ve seen above, some studies have shown that spearmint tea lowers testosterone levels in people with hirsutism and/or people with PCOS. But, does this translate to reduced facial hair. Despite reduced testosterone levels, not all studies noted a reduction in the objective Ferriman-Galwe scale. The Ferriman-Galwe scale is a ranking system used to describe “female” hirsutism. This is likely because these studies are short-term and it can take a while for reduced testosterone to present as reduced facial hair, for example. Do I have to drink spearmint tea or can I take spearmint capsules or spearmint oil?PCOS was induced in two groups (treatment and PCOS groups) of rats with regular estrous cycles 7 weeks after a single intramuscular injection of 4 mg of estradiol valerate/rat dissolved in 0.2 ml of sesame oil [ 25, 26]. Blood sampling and histological study SUPPORTS CARDIOVASCULAR HEALTH: This herb may help maintain normal blood pressure levels, which is essential for overall cardiovascular health. Additionally, they may help regulate glucose levels in the body, which is important for preventing heart disease and maintaining optimal health. We now know that spearmint contains menthol and this has a calming effect on our bodies. Therefore, if you suffer from stress or anxiety, spearmint tea can help to relax the mind and reduce the side effects that stress hormones place on the body. 9. It Can Improve Memory. There are some rodent studies that used spearmint essential oil but we need more human studies to understand the effects of spearmint capsules and spearmint oil. How many cups of spearmint tea a day help PCOS?
Torney, L. K., Johnson, A. J., and Miles, C. Chewing gum and impasse-induced self-reported stress. Appetite 2009;53(3):414-417. View abstract. Both spearmint leaves and oil are used to create medicinal products. In fact, spearmint oil is known for its ability to decrease inflammation, destroy bacteria and may even fight off cancer cells when used internally. Spearmint does not only freshen the breath when used in toothpastes and mouthwashes, it also has an anti-bacterial effect which can help to prevent the throat and mouth from infections. Halitosis, more commonly known as bad breath, is often caused by bacteria which lives under the gums. Spearmint can help to keep your breath smelling clean as well as help fight these bacteria. Like the gum, right? Yes, like the gum, but also like the toothpaste, mouthwashes and various cosmetics you use on a daily basis. Maybe you’ve never stopped to really think about spearmint extract, but it’s been around you for some time. Nozhat F, Alaee S, Behzadi K, Chegini NA. Evaluation of possible toxic effects of spearmint (Mentha spicata) on the reproductive system, fertility and number of offspring in adult male rats. Avicenna J Phytomed. 2014;4(6):420.
Kumar, V., Kural, M. R., Pereira, B. M., and Roy, P. Spearmint induced hypothalamic oxidative stress and testicular anti-androgenicity in male rats - altered levels of gene expression, enzymes and hormones. Food Chem Toxicol. 2008;46:3563-3570. View abstract. Brooks JD, Thompson LU. Mammalian lignans and genistein decrease the activities of aromatase and 17beta-hydroxysteroid dehydrogenase in MCF-7 cells. J Steroid Biochem Mol Biol. 2005;94(5):461–7. Yu, T. W., Xu, M., and Dashwood, R. H. Antimutagenic activity of spearmint. Environ Mol.Mutagen. 2004;44(5):387-393. View abstract.
Goncalves, J. C., Oliveira, Fde S., Benedito, R. B., de Sousa, D. P., de Almeida, R. N., and de Araujo, D. A. Antinociceptive activity of (-)-carvone: evidence of association with decreased peripheral nerve excitability. Biol Pharm Bull. 2008;31:1017-1020. View abstract. Lete I, Allué J. The effectiveness of ginger in the prevention of nausea and vomiting during pregnancy and chemotherapy. Integr Med Insights. 2016;11:11-17. doi:10.4137/IMI.S36273 Akdogan M, et al. (2007). Effect of spearmint (Mentha spicata Labiatae) teas on androgen levels in women with hirsutism. There isn’t much scientific evidence on the appropriate dose of spearmint for hirsutism. Early research, however, indicates, that drinking a cup of spearmint tea twice daily could help to decrease the levels of male sex hormones (testosterone) in the blood of women with male-pattern hair growth within a month. Drinking spearmint tea may help reduce hirsutism, or growth of dark, coarse hair on the face, chest and abdomen of women.
Nosrati, S., Alireza, S., Hosseini, E., Sarpeleh, A., SoflaeiShahrbabak, M., & SoflaeiShahrbabak, Y. (2011). Antifungal activity of spearmint (Mentha Spicata L.) essential oil on Fusarium oxysporum f. sp. radicis-cucumerinum the causal agent of stem and crown rot of greenhouse cucumber in Yazd, Iran. Presented at 2011 International Conference on Environmental and Agriculture Engineering. IPCBEE vol.15(2011) In vitro research published in 2018 in BMC Complementary and Alternative Medicine highlights the ability of spearmint oil (which has at least 44 unique compounds) to have antiproliferative effects against three human tumor cell lines. While some people may chew spearmint gum to stay awake, others know that it actually has a natural sedating effect. Spearmint contains a chemical that naturally causes sleepiness and drowsiness. This makes it important to avoid sedative and sleep medications while using this extract. Otherwise, drowsiness and tiredness might occur. Other Side Effects and Warnings Therefore, while studies on the effects of this type on mint on digestion are limited, some evidence suggests that it may be helpful. Spearmint extract is a natural supplement, but natural never means risk-free. Taking any supplement in large doses can be harmful. When supplementing with spearmint extract powder, take 800 mg (about 1/3 tsp) daily (or as directed by a physician). It is best taken with meals. Interactions
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