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Permanent research: does drinking coffee before a workout burn more fat? - Walla! health

2023-03-23T05:40:39.872Z


Many people drink black coffee before a workout, assuming that it helps burn fat. Now researchers have decided to dive in and try to determine whether this is a true fact or just a myth? Here are the answers


5 things you might not have known about coffee ("must miss" system)

High levels of caffeine in the blood may lower the amount of body fat and reduce the risk of type 2 diabetes, according to a new study published in the journal BMJ Medicine.

The findings may lead to the use of caffeinated beverages to reduce obesity and type 2 diabetes, although "more research is needed," the researchers wrote.



Dr Katrina Kos, senior lecturer in diabetes and obesity at the University of Exeter, said the study showed potential health benefits for people with high levels of caffeine in their blood, but added: "This is not a recommendation to drink more coffee.

And in any case, all drinks that contain caffeine and also include sugar and fat will offset the positive effects."

Increases metabolism

The researchers said their work builds on previously published research that suggested drinking three to five cups of coffee each day, containing an average of 70-150 mg of caffeine, was associated with a lower risk of type 2 diabetes and cardiovascular disease. Because these were observational studies, they had difficulty to indicate whether the effects were due to caffeine or other compounds, the researchers said.



The researchers used a technique known as Mendelian randomization (random assignment), which determines cause and effect using genetic evidence. The team found two common gene variants associated with the speed of caffeine metabolism, and used them to calculate caffeine levels in the blood are genetically predicted and whether this is associated with lower BMI and body fat



People who carry genetic variants associated with slower metabolism of caffeine drink less coffee on average, but still have higher levels of caffeine in their blood than people who break it down quickly.



The researchers found that almost half of the reduction in the risk of type 2 diabetes was due to weight loss.

It is known that caffeine increases the metabolism and burning of fats and reduces the appetite, when daily consumption of 100 mg of caffeine is estimated to increase the energy expenditure by about 100 calories per day.

Does it help burn fat?

A woman with coffee before exercise (Photo: ShutterStock)

Still, there are limitations to the findings.

These include the fact that the research was based on almost 10,000 people of mostly European descent who took part in six long-term studies.



Dr Stephen Lawrence, a fellow at the University of Warwick's School of Medicine, told Britain's Guardian that the study was "interesting" and used "good science", but noted that Mendelian assessment was a "relatively new technique" and, while useful, was "vulnerable to bias". He said this could lead to future studies that could eventually develop promising treatments. "This represents good science for generating hypotheses or ideas.

However, this does not prove cause and effect.

Therefore, we must be careful not to rush to overinterpret it."



The new study reinforced the assumption that weight loss from increased caffeine consumption would reduce the risk of developing type 2 diabetes, Lawrence said, adding that it was no more effective than reducing calorie intake and increasing physical activity.

Additionally, caffeine consumption caused palpitations and abnormal heart rhythms in some people, so it wasn't for everyone.



"Should people drink more coffee to reduce their risk of obesity or diabetes? Science offers relatively good evidence that caffeine consumption increases fat burning, even while resting. However, it is not a treatment for obesity and, if used incorrectly, can cause weight gain or even damage".

  • health

  • Nutrition and diet

Tags

  • coffee

  • fat

  • Exercise

Source: walla

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