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8 reasons to avoid detox teas

Netdoctor (UK) logo Netdoctor (UK) 09/08/2017 Sophie Goddard

8 reasons why you should avoid detox tea for the sake of your health © Image Source / Getty 8 reasons why you should avoid detox tea for the sake of your health The sun's out and holidays are looming - and suddenly supermarket shelves seem to be full of mysterious 'teatox' packages and 'skinny' teas, promising miraculously fast weight loss just in time for the beach. Perhaps you've been tempted - or maybe you've even bought a pack yourself. But here, GP Dr. Louise Newson, who runs a private clinic at Spire Parkway Hospital in Solihull tells us why they're so dangerous - and why exactly we should steer clear…. 

1. They're all different

...Making it hard to know what's actually in them. "Detox teas aren't regulated and they're not all the same," explains Dr. Newson. "Some are harmless, but some contain laxatives such as senna, which work by stimulating your colon to contract more than it usually does, forcing out water and waste." And while senna makes you look slimmer temporarily (thanks to losing water weight) there's no impact on actual fat loss, says Dr. Newson, because any calories from food have already been absorbed by this point. 

The difficulty comes in working out which teas are safe, and which probably aren't. "As a rule, teas with senna should definitely be avoided," she says. "Senna should only be used for short-term relief of constipation whereas many of these teas recommend use for weeks at a time when constipation isn't a problem - which can be dangerous." 

2. Natural doesn't mean 'safe'

Natural = good, right? Not necessarily. "Just because something is labelled 'natural', it doesn't mean it's safe for us to eat or drink," explains Dr. Newson. "None of these products are regulated and manufacturers don't really know the combined effect the ingredients will have on the body.

And don't make the mistake of believing the celebrities advertising it are taking it either. "It's highly unlikely they're using it themselves," Dr. Newson points out.

3. Medication might not be as effective

From thyroid medication to antidepressants - sipping a seemingly innocuous tea could have serious repercussions on medication we're already taking, it turns out. "Laxative teas could interact and stop medications from working, which is incredibly dangerous," says Dr. Newson. If in doubt, it's always worth a quick chat with your GP or medical professional. Better safe than sorry…

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4… meaning you could get pregnant

Alongside other medication, widespread accounts of detox teas causing the contraceptive pill to stop working have already hit headlines and according to Dr. Newson, it's worth listening to. "When you suffer from diarrhoea (passing six to eight watery stools in 24 hours) there's a high chance the contraceptive pill hasn't worked because it hasn't been absorbed properly. If in doubt, call your GP to find out the best course of action - you might need to take a replacement pill ASAP." 

5. Sleep problems are common

Thanks to most detox teas containing medium to high levels of caffeine (there are links to suggest caffeine can suppress appetite) it's possible your sleep cycle could be affected, too – especially if you rarely drink caffeine normally. It's best to check how much caffeine you're consuming either way – the general advice is that four or five cups of coffee a day is safe (which equals around 400mg of caffeine) although everybody has different tolerances. 

6. Your body won't absorb vital nutrients

"The irony is, many people start drinking detox teas to be 'healthy' and 'detox', but the laxative effect means food isn't properly absorbed," explains Dr. Newson. "Going to the toilet too quickly after eating means the gut isn't getting the opportunity to absorb food which means vitamins and minerals aren't being absorbed by the body either." The result? Trying to be 'healthy' has exactly the opposite effect, sadly… 

7. Digestive problems are likely, too

"As a doctor, I've seen lots of patients who have abused laxatives as teens experiencing serious constipation when older as a result," says Dr. Newson. "It doesn't take long for laxatives to cause problems if you're using them when you don't need them. As well as affecting the chemicals in the blood (electrolytes) your gut can become lazy as a result, which means you'll need to continue using laxatives long-term and become reliant on them - another problem in itself."

And be wary of anything claiming to 'speed up the metabolism' too, says Dr. Newson. "Anything that speeds up the metabolism is dangerous because when you stop taking it, it can slow the metabolism down," she explains. 

8. You probably won't lose weight

"As discussed, detox teas won't actually help you lose weight – they're just a temporary quick-fix which doesn't last," says Dr. Newson. "If you really want to lose weight and improve your health, you're better off looking at your diet – increasing your intake of fresh fruit and vegetables, and cutting out processed rubbish – it's a far safer, healthier way of doing it. My rule of thumb is that if you're embarrassed about the diet you're on (and don't want to talk about it to friends, for example) then it's probably not a sensible diet to be on!"

Related: 5 Foods to Rev Up Your Metabolism (provided by Cooking Light)

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