London, May 1: Eating lots of refined carbohydrates, particularly white pasta and rice, may advance the start of menopause by about one-and-a-half years, warns a study.

The findings, published in the Journal of Epidemiology and Community Health, showed that high intake of healthy foods, such as oily fish and fresh legumes, such as peas and green beans, was associated with a later onset of menopause.

"There are a number of causes that have been considered for the relationship between age and start of menopause, such as genetic factors or behavioural and environmental exposures. But there are fewer studies that look at the impact of diet," said study lead author Yashvee Dunneram, a postdoctoral researcher at the University of Leeds in Britain. 

The study used data from more than 14,150 women living in Britain. Along with a detailed diet questionnaire, an initial survey collected information on reproductive history and health.

When a follow up survey and questionnaire were conducted four years later, the researchers were able to assess the diets of the women who had experienced the onset of a natural menopause in the interim.

The average age at the start of the menopause for women in Britain is 51 years. 

More than 900 women between the ages of 40 and 65 had experienced a natural start of their menopause at the time of the follow-up survey, meaning they had not had menstrual periods for at least 12 consecutive months and menopause had not been brought on by such things as cancer, surgery or pharmaceutical treatments.

Analysis of their diet showed that high intakes of oily fish were associated with a delayed start of menopause by nearly three years. 

A diet with lots of refined pasta and rice showed that menopause was more likely to occur one-and-a-half years earlier than average.

"The age at which menopause begins can have serious health implications for some women," study co-author Janet Cade, Professor at the University of Leeds, said.

Previous studies have suggested that earlier onset of menopause is associated with lower bone density, osteoporosis and increased risk of cardiovascular diseases, while later menopause has been associated with a higher risk for breast, ovarian and endometrial cancers.

Even though the new study is observational and cannot prove any cause, the researchers offer some possible explanations behind their findings, according to a BBC report on Tuesday.

For example, legumes contain antioxidants, which may preserve menstruation for longer.

Similarly, omega-3 fatty acids found in oily fish, also stimulate antioxidant capacity in the body.

On the other hand, refined carbs increase the risk of insulin resistance, which can interfere with sex hormone activity and raise oestrogen levels. 

This might increase the number of menstrual cycles leading to the egg supply running out faster, the BBC report said.

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Kolkata, Nov 6: Two FIRs have been lodged against actor-turned-politician Mithun Chakraborty for allegedly making provocative statements during a BJP event in Salt Lake area near Kolkata last month, police said on Wednesday.

The complaints pertain to Chakraborty's speech on October 27 at the Eastern Zonal Cultural Centre (EZCC) in Salt Lake, during a BJP programme attended by Union Home Minister Amit Shah, who was in Kolkata to launch the party's West Bengal membership drive.

The first FIR was filed at the Bidhannagar South police station based on a complaint by an individual, while the second was lodged at Bowbazar police station.

"We have started an investigation into the case," a senior officer of Bidhannagar police said.

Shah was also present at the programme, which was organised to kick off the West Bengal leg of the BJP's membership drive. Shah had also felicitated Chakraborty for being honoured with the Dadasaheb Phalke Award this year.

Although Chakraborty was unavailable for comment, BJP state president and Union Minister Sukanta Majumdar described the FIRs a result of "vendetta politics.".

Majumdar alleged that the TMC government "has once again used the police to unfairly target well-known actor and senior BJP leader Mithun Chakraborty".

He accused the chief minister of employing such tactics "to serve political interests" and claimed that the state government's actions were part of an ongoing attempt to discredit political opponents.

"There is nothing provocative in his speech. These are nothing but attempts to intimidate him by using police as a political tool," he said.

TMC leader Kunal Ghosh dubbed the BJP's allegations as baseless.

"The allegations of political vendetta are baseless. He shouldn't have made such provocative remarks. The law will take its own course," he said.

Chakraborty, who received India's highest film honour, the Dadasaheb Phalke Award, earlier this year, had asserted on October 27 that the 'masnad' (throne) of West Bengal would belong to the BJP after the 2026 assembly elections, promising to do whatever it takes to achieve the goal.

While speaking at the programme, Chakraborty, a BJP leader, said, "In 2026, the 'masnad' will be ours, and we will do everything to achieve the goal."

In an apparent reference to TMC MLA Humayun Kabir's communal remarks aimed at BJP workers during the Lok Sabha elections, Chakraborty had allegedly made provocative remarks.

Chakraborty cautioned that no one should attempt to intimidate saffron party voters into abstaining from voting in the next assembly elections.

He called upon the booth-level workers of his party to resist any such attempts.