Study examines meat consumption's impact on mortality risk in the frail

NewsGuard 100/100 Score

Frailty, a clinical syndrome affecting almost 10% of the elderly, undermines their ability to handle stress.

Nutrition plays a key role in frailty development, with protein supplements often used to boost strength and physical function in frail older adults. Although meat is a rich protein source, its impact on the health of frail individuals remains under-researched.

A recent study in The Journal of Nutrition, Health and Aging explores how meat consumption influences the risk of death in frail populations.

Study: Associations between meat consumption and all-cause and cause-specific mortality in middle-aged and older adults with frailty. Image Credit: KucherAV/Shutterstock.comStudy: Associations between meat consumption and all-cause and cause-specific mortality in middle-aged and older adults with frailty. Image Credit: KucherAV/Shutterstock.com

About frailty

Frailty arises from diminished physiological capacity due to existing deficiencies across various bodily systems, leading to increased vulnerability to stressors and a higher demand for medical care in the elderly.

Recent studies aim to enhance the well-being of frail individuals by investigating the roots of frailty and tracking the progression of this condition.

The role of meat in frailty

Meat, as a food category, includes red meat, fish, and poultry. Rich in proteins and micronutrients, meat is important for building and maintaining muscle strength, enhancing physical strength, and minimizing the incidence of malnutrition in the elderly.

Even though frail people need to eat more protein, prior research has demonstrated a positive association of red meat with frailty, unlike other types of protein.

This could be due to the high saturated fat content in red meat that is associated with increased cardiovascular disease (CVD) risk.

In addition, processed meat contains nitrites and other preservatives that may trigger oxidative stress and inflammation, both of which cause CVD and metabolic disease.

Such findings have led to recommendations, both by the World Health Organization (WHO) and many national nutritionist bodies, to eat less red meat and processed meat.

What did the study show?

There were around 20,000 participants, with a mean age of 58 years. About 60% were female. About 38% and 12% ate red meat and processed meat, respectively.

About a fifth consumed poultry. Increased frequency of poultry consumption was associated with a lower risk of death from all causes. Compared to those who had poultry less than once a week, those who had it 1-2 times had a 10% lower risk, while those who ate it >4 times a week had a 33% lower risk.

Deaths from cancer were also lower, at 10% and 20%, for those who had poultry 1-2 times vs >4 times a week. Moreover, mortality from CVD was reduced by 15%, 25%, and 50%, among those who ate it 1-2, 2-4, and >4 times a week, respectively.

The opposite trends were seen among those who had higher processed meat consumption. All-cause mortality was increased by 10% and 20% among those who ate processed meat 2-4 vs >4 times a week, respectively.

Deaths from CVD were higher by 15% and 25% among those who had processed meat 1-4 times vs >4 times a week, respectively.

There was a U-shaped relationship between red meat intake and mortality. The death rates from all causes, cancer, and CVD were all lower among those who ate red meat up to 2 times a week, but only the first was significant.

The risk of all-cause deaths was 14% lower in this group compared to those who had red meat less than once a week.

For each additional 25 g of red meat, the risk of all-cause mortality and deaths from CVD among the frail increased by 7% and 16%, respectively. This was not the case for overall meat consumption.

If processed meat was replaced by oily fish, like sardines, the risk of all-cause death was 5% lower. If substituted by poultry, it was 9% lower for all-cause deaths and 7% less for cancer deaths. CVD mortality was reduced by 13%.

If fish replaced red meat, all-cause mortality went down by 3%, but if oily fish was consumed, it went down by 6%. Substitution with cheese led to a 4% reduction but by 10% for poultry.

These substitutions were also more heart-friendly, with poultry being associated with 13% lower CVD mortality vs 5% for cheese and for fish.

Interestingly, increased red meat consumption was linked to a higher risk of all-cause mortality among males only.

This risk was also stronger for processed meat consumption among males and those with a body mass index (BMI) of 25 kg/m3 or higher. BMI was also similarly linked to increased risk for all-cause mortality with increasing meat consumption.

Lessons to learn

We need much more research on optimal dietary components for people with frailty because current clinical guidelines are mainly based on expert consensus because of the lack of an evidence base.”

These findings from a study that explores the different types of meat consumption in relation to mortality risk in frail individuals supply a significant foundation for such recommendations.

They corroborate earlier studies showing the adverse impact of processed meat on all-cause and cardiovascular mortality, which outweighs the potential benefit in terms of the protein supplied.

The association of red meat intake >2 times a week with increased mortality has not been reported by other studies but may be due to the saturated fat content, which may boost the risk of CVD.

The results indicate that “poultry and fish could be a healthier alternative to red and processed meat among frail individuals.”

Further research is necessary to explore the interaction of BMI with processed meat consumption and mortality risk. The reasons for increased mortality with red meat intake in males remain unexplained, inviting future studies.

Journal reference:
  • Jie Chen a, Weihao Xu, Lintao Dan, Junhan Tang b, Jirong Yue e,  Emiel O. Hoogendijk f, and Chenkai Wu (2024). Associations between meat consumption and all-cause and cause-specific mortality in middle-aged and older adults with frailty. The Journal of Nutrition, Health and Aging. doi: http://dx.doi.org/10.1016/j.jnha.2024.100191
Dr. Liji Thomas

Written by

Dr. Liji Thomas

Dr. Liji Thomas is an OB-GYN, who graduated from the Government Medical College, University of Calicut, Kerala, in 2001. Liji practiced as a full-time consultant in obstetrics/gynecology in a private hospital for a few years following her graduation. She has counseled hundreds of patients facing issues from pregnancy-related problems and infertility, and has been in charge of over 2,000 deliveries, striving always to achieve a normal delivery rather than operative.

Citations

Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    Thomas, Liji. (2024, March 29). Study examines meat consumption's impact on mortality risk in the frail. News-Medical. Retrieved on April 12, 2024 from https://www.news-medical.net/news/20240329/Study-examines-meat-consumptions-impact-on-mortality-risk-in-the-frail.aspx.

  • MLA

    Thomas, Liji. "Study examines meat consumption's impact on mortality risk in the frail". News-Medical. 12 April 2024. <https://www.news-medical.net/news/20240329/Study-examines-meat-consumptions-impact-on-mortality-risk-in-the-frail.aspx>.

  • Chicago

    Thomas, Liji. "Study examines meat consumption's impact on mortality risk in the frail". News-Medical. https://www.news-medical.net/news/20240329/Study-examines-meat-consumptions-impact-on-mortality-risk-in-the-frail.aspx. (accessed April 12, 2024).

  • Harvard

    Thomas, Liji. 2024. Study examines meat consumption's impact on mortality risk in the frail. News-Medical, viewed 12 April 2024, https://www.news-medical.net/news/20240329/Study-examines-meat-consumptions-impact-on-mortality-risk-in-the-frail.aspx.

Comments

The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical.
Post a new comment
Post

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.

You might also like...
Study suggests high levels of vitamin B3 breakdown products are linked to higher risk of mortality, heart attacks, and stroke