You are now more likely to get cancer, diabetes and other health problems if you drink herbal teas for “calming” purposes, according to a new report.
The British Medical Journal has been reviewing scientific evidence to try and determine whether herbal teases could lead to the disease, such as cancer and other serious health problems.
But the report warns that “the evidence is insufficient to draw any firm conclusions”.
Dr David Moulds, from the Institute of Clinical Epidemiology at University College London, said: “This review is the first of its kind and is likely to lead to further research.”
We are still not sure what the exact mechanisms of action are, but we think that these are some of the most important mechanisms we know about.
“It is certainly not something we recommend to anyone.”
The review, which looked at 19 studies, found that tea consumption was associated with a number of health outcomes.
The most common effect was a reduction in the number of tumours, although some studies showed an increase in the risk of developing some other disease.
Dr Moulding said: “It’s clear that some people who have this particular type of cancer or other health problem may be particularly vulnerable.”
What we are really trying to do here is try to figure out how tea might help them reduce their risk of these particular cancers and other disease, and the same is true for the overall health risks associated with tea.
“The researchers said that the research was the first to look at the link between herbal tea consumption and cancer.
They found that in two studies involving more than 400 people, people who consumed a lot of tea had significantly fewer tumours than those who did not.
“We have seen no evidence that the tea in question actually reduces the risk for any of these cancers, and there is evidence that drinking tea can be harmful to the liver.””
The most important thing for anyone to remember is that this research does not prove that consuming herbal tea is helpful,” Dr Mould said.
“We have seen no evidence that the tea in question actually reduces the risk for any of these cancers, and there is evidence that drinking tea can be harmful to the liver.”
The study, which is published in the British Medical Association Journal, also looked at the relationship between tea consumption, cancer and a range of other health conditions.
It found that the overall effect was less positive for some of these conditions, such with depression.
For example, people with depression are more likely than the general population to drink tea.
However, they were also more likely, on average, to have other health issues, including high blood pressure, high cholesterol and heart disease.
Other studies found that consuming tea for the purpose of cancer treatment reduced the risk in some cases, but there was no evidence of a causal link between tea and cancer risk.
Dr Molds said:”Tea is a naturally occurring beverage, and is probably beneficial for most people.”
He said the research looked at “a number of different things, but at the end of the day it’s really about what is in the tea, what’s in the water, what is being done in the body, and how much of it is metabolised in the gut.”
“The main takeaway here is that there is not a direct causal relationship between consuming herbal teapot and cancer.”
Dr James Boulton, of the University of Aberdeen, said the findings were surprising.
He said: “The results from this review suggest that, for some people, consuming tea may help prevent some cancers and some other health complications, but that there’s no evidence to suggest it’s harmful.”
For some people it may help, but the evidence is quite clear that drinking herbal tea does not appear to reduce the risk that people with cancer have of developing other conditions that are associated with it.
“So the conclusion that it might help is not really a conclusion we can draw from the findings here.”
Dr Boulman added that “people might be better off avoiding the herbal tea that is being sold, or at least buying a lot from a health food store”.
“The evidence is still very limited, but in this case, there’s a lot we don’t know.”
Dr Bournemouth University Health Care, which carried out the study, said it was too early to draw conclusions about the role of tea in cancer prevention.
It added that the study did not take into account the role that other types of herbal tea could play in the prevention of cancer.
“This is really just the start of what we need to do to better understand how tea may influence cancer risk, but it does highlight the potential for other herbal teastas to have a role in the management of cancer,” it said.