There are teas containing senna sold in Canada that are licensed as natural health products. But nine of the 10 teatox kits ordered by Marketplace contained senna or cassia seed, and none were registered with Health Canada. The U. That can impact the body's ability to absorb medications, it says, including birth control pills.
Women who are taking laxatives and experience these symptoms should "use additional contraception while ill and for two days after recovering," according to the college. Even if people don't experience vomiting or diarrhea, the U.
National Library of Medicine says senna can decrease the effectiveness of some birth controls that include a form of estrogen called ethinyl estradiol. Six of the nine tea products containing senna or cassia that Marketplace ordered had warnings on their websites that the effectiveness of contraception could be impacted.
Of the three Canadian products Marketplace purchased, two had senna listed as an ingredient: Tease and Skinny Teatox. Neither responded to Marketplace 's repeated requests for information. The third Canadian product, Victoria-based Purgo Tea, does not list senna on its package, but it does list cassia seed.
In emails to Marketplace , the company said it promotes "positive daily habits and [a] healthy lifestyle. The company also said their teas are "intended to help [complement] your health and wellness goals.
Tiny Tea by Your Tea responded to Marketplace 's email asking about the presence of senna in its product, stating, "the use of senna in our Tiny Tea is minuscule and therefore does not cause a laxative effect whatsoever. It is countered with another herb barley so that the presence of senna actually doesn't perform its usual role as it if were on its own.
FitTea was the only brand that doesn't contain senna or cassia seed. It lists sencha green tea, rooibos and garcinia cambogia as its lead ingredients. The company also didn't respond to Marketplace's emails. Most teatox kits are sold exclusively online and are promoted on social media platforms, primarily Instagram, Facebook and Twitter.
But Cadesky warns that effective marketing does not mean effective products. The ASA found that Nomad Choice, the company in charge of Flat Tummy Tea, "did not hold scientific data to support their claims that the tea ingredients could help with water weight loss" and therefore found that it had breached rulings.
Experts have revealed the dangers of drinking "detox" teas containing senna, which the Flat Tummy Tea's cleanse tea contains, as it is classified by the NHS as a medication used to treat constipation. She added that drinking teas which contain senna could also disrupt the body's electrolyte balance and subsequently cause heart problems in the long run. Taking senna can be particularly harmful for those suffering from IBS — who will likely experience stomach cramps and diarrhoea as a result, the NHS website explains.
Whilst senna leaves are listed as an ingredient in their night cleanse tea on the site's homepage see below — it is absent other ingredients lists. While this loss of bulk can make you feel and look slimmer short term, it has no impact on fat loss, because calories from food are absorbed in your small intestine long before it gets to the colon.
Senna should only be for very short term use but these detox teas suggest long term stints and repetition which is worrying," she told The Independent. Consumer NZ found that a selection of teas sold by the company Healtheries, owned by Vitaco Health, contained senna, a source of sennosides, a medicine used to treat constipation, which can only be sold in pharmacies. Companies selling products that contain senna need consent from Medsafe. Senna Klenz, another brand of tea promoted as a detox tea and sold at health food stores, and a senna "teatox" advertised by influencer and personal trainer Sera Lilly on her website fat2fitnz.
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