Women Health: Protein Intake May Reduce Risk Of Hip Fractures In Females | Health News
According to a recent study, boosting protein intake and regularly consuming tea or coffee can lower the incidence of hip fractures in women. According to research conducted by food experts at the University of Leeds in the UK, women’s risk of hip fracture decreased by 14 percent on average with every additional 25g of protein consumed daily. They also unexpectedly found that each additional cup of tea or coffee they drank was associated with a 4 percent decrease in risk. Writing in the journal Clinical Nutrition, the researchers noted that the protective benefits were greater for underweight women, with a 25g/day increase in protein reducing their risk by 45 percent.
The protein could come in any form: meat, dairy, or eggs; and for people on a plant-based diet, from beans, nuts, or legumes. Three to four eggs would provide around 25g of protein as would a steak or piece of salmon. 100g of tofu would provide about 17g of protein. Just over 3 percent of the women in the study group experienced a hip fracture.
The investigation — Foods, nutrients and hip fracture risk: A prospective study of middle-aged women — is based on a large observational analysis of more than 26,000 women. As an observational study, the researchers were able to identify associations between factors in diet and health. They could not single out direct cause and effect. James Webster, a doctoral researcher in the School of Food Science and Nutrition at Leeds who led the study, said: “Across the world, the costs to individuals and societies caused by hip fracture are enormous.”
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A hip fracture can often lead to other chronic illnesses, loss of independence, and premature death. In the UK, the annual cost to the NHS is between £2 to £3 billion. “Diet is a factor that people can modify to protect themselves by maintaining healthy bones and muscles. This study is one of the first to investigate relationships between food and nutrient intakes and the risk of hip fracture, with hip fractures accurately identified through hospital records.”
The results highlight which aspects of diet may be useful tools in reducing hip fracture risk in women, with evidence of links between higher protein, tea, and coffee intakes and reduced risk. “Proteins are the basic building blocks of life and are needed to keep cells, tissues, and muscles working properly as well as contribute to bone health. The recommended protein intake in the UK is 0.8g per kilogram of body weight per day, a limit some nutritional experts believe is too low.
As the study revealed, people who had a higher protein consumption had a reduction in the risk of hip fracture. However, very high intakes of protein — where intake is greater than 2 to 3g of protein/kg body weight/day — can have negative health effects.
The study was not able to explore these very high protein intake levels. Professor Janet Cade, who leads the Nutritional Epidemiology Group at Leeds and supervised the research, said: “In the UK most people eat an adequate amount of protein, however, certain groups, such as vegetarians or vegans need to check that their protein intakes are high enough for good health.”
Why underweight women may see greater risk reductions
Underweight women may be more likely to have reduced bone mineral density and muscle mass. Increasing intakes of several foods and nutrients, especially protein, may help reduce hip fracture risk more in underweight women than in healthy or overweight women by helping to establish or restore bone and muscle health. However, the researchers note that this finding needs further research to confirm this. Tea and coffee both contain biologically active compounds called polyphenols and phytoestrogens which may help to maintain bone health.
Professor Cade added: “This is an interesting finding given that tea and coffee are the UK’s favourite drinks. We still need to know more about how these drinks could affect bone health but it might be through promoting the amount of calcium present in our bones.”
UK Women’s Cohort StudyThe data used in the study came from the UK Women’s Cohort Study, which recruited participants between 1995 and 1998. At the time they entered the study, the women ranged between 35 and 69 years of age. At recruitment, they were asked to fill out questionnaires about their diet and lifestyle. This information was then linked with hospital records over the following two decades, which revealed how many had suffered a hip fracture or had a hip replaced.
Of the 26,318 women involved in the study, 822 cases of hip fracture were identified, which is 3.1 percent. Foods, nutrients, and hip fracture risk: A prospective study of middle-aged women by James Webster, Dr Darren C. Greenwood, and Professor Janet E. Cade, all from the University of Leeds.
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