Regular meat consumption linked to disease

Regular meat consumption linked to disease. The World Cancer Research Fund recommends that people should limit red meat consumption to no more than three portions per week (around 350–500g cooked weight in total), and processed meat should be eaten rarely, if at all.

 
A large, population-level study conducted by a team at the University of Oxford shows regular meat consumption is associated with a range of diseases that researchers had not previously considered.
 
The results suggest if you eat meat regularly, you have a higher risk of getting diseases, including heart disease, pneumonia and diabetes, but a lower risk of iron-deficiency anaemia. The study was published in March 2021 in BMC Medicine.
 
Consistent evidence so far has shown if you consume excess red meat and processed meat (such as bacon and sausages) in excess, you are more likely to develop colorectal cancer. But up until now, it was not clear whether high meat consumption in general might raise or lower your risk of other, non-cancerous diseases.
 
This has been investigated in a new large-cohort study which used data from almost 475,000 UK adults, who were monitored for 25 major causes of non-cancerous hospital admissions. At the start of the study, participants completed a questionnaire which assessed their dietary habits (including meat intake). And then they were followed-up for an average period of eight years.
 
Overall, participants who consumed unprocessed red meat and processed meat regularly (three or more times per week) were more likely than low meat-eaters to smoke, drink alcohol, have overweight or obesity They were also found to eat less fruit and vegetables, fibre, and fish.
 
However, after taking these factors into account, the results indicated that:
  • Higher consumption of unprocessed red meat and processed meat combined was associated with higher risks of ischaemic heart disease, pneumonia, diverticular disease, colon polyps, and diabetes. For instance, every 70g higher red meat and processed meat intake per day, was associated with a 15% higher risk of ischaemic heart disease and a 30% higher risk of diabetes.
  • Higher consumption of poultry meat was associated with higher risks of gastro-oesophageal reflux disease, gastritis and duodenitis, diverticular disease, gallbladder disease, and diabetes. Every 30g higher poultry meat intake per day was associated with a 17% higher risk of gastro-oesophageal reflux disease (GERD) and a 14% greater risk of diabetes.
  • Most of these positive associations were reduced if body mass index (BMI, a measure of body weight in relation to body height) was taken into account. This suggests that regular meat eaters having a higher average body weight could be partly causing these associations.
  • The team also found that higher intakes of unprocessed red meat and poultry meat were associated with a lower risk of iron deficiency anaemia. The risk was 20% lower with every 50g higher per day intake of unprocessed red meat and 17% lower with every 30g higher per day intake of poultry meat. A higher intake of processed meat was not associated with the risk of iron deficiency anaemia.
The research team suggest that unprocessed red meat and processed meat may increase your risk of ischaemic heart disease because they are major dietary sources of saturated fatty acids. These can increase low-density lipoprotein (LDL) cholesterol (also known as bad cholesterol), a known risk factor for ischaemic heart disease.
 
Lead author Dr Keren Papier, from the Nuffield Department of Population Health at the University of Oxford, said: 
 

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We have long known that unprocessed red meat and
processed meat consumption is likely to be carcinogenic and this research is the first to assess the risk of 25 non-cancerous health conditions in relation to meat intake in one study.
Additional research is needed to evaluate whether the differences in risk we observed in relation to meat intake reflect causal relationships, and if so the extent to which these diseases could be prevented by decreasing meat consumption. The result that meat consumption is associated with a lower risk of iron-deficiency anaemia, however, indicates that people who do not eat meat need to be careful that they obtain enough iron, through dietary sources or supplements.
 
The World Cancer Research Fund recommends that people should limit red meat consumption to no more than three portions per week (around 350–500g cooked weight in total), and processed meat should be eaten rarely, if at all.
 
This study was based on 474,985 middle-aged adults, who were originally recruited into the UK Biobank study between 2006 and 2010, and were followed-up for this study until 2017. These participants were invited to complete a dietary questionnaire with 29 questions on diet, which assessed the consumption frequency of a range of foods. Participants were then categorised into subgroups based on their meat intake: 0-1 times/week; 2 times/week; 3-4 times/week and 5 or more times a week. The information on each participant’s meat intake was linked with hospital admission and mortality data from the NHS Central Registers.
 
 
Read here how the Buchinger fasting method can reduce the risk factors for diseases linked to regular meat consumption.
 

Healthy eating: Why even part-time vegetarians & vegans stay slim as they age

By Matt Evans

When people think of vegetarianism or veganism, they think of a strict dietary regime. However, there’s plenty of people who adhere to “flexitarianism”, committing to one or more meat-free days a week to reduce meat consumption.

Not only is this better for the planet, but a new study shows even a part-time vegetarian diet prevents obesity in middle and old age.

Researchers from Erasmuc MC Rotterdam in the Netherlands analysed varying degrees of plant-based diet and body development in almost 10,000 middle-aged and elderly adults as part of a landmark ongoing population study. The researchers looked at body mass index (BMI), waist circumference and loads of other metrics from 2002 to 2016.

Over the course of those years, it was found participants who had higher scores on the plant-based diet index had a lower BMI and lower waist circumference over the long term. This was after adjusting for the effects of time of factors like education, socioeconomic background, and physical activity levels.

The message from this study was clear: if you adhere to a plant-based diet (even on a part-time basis), you’re less likely to suffer from obesity in later life.

(Image credit: Sydney Rae (Unsplash))

The researchers wrote: “Eating a plant-based diet to protect against obesity does not require a radical change in diet or a total elimination of meat or animal products. Instead, it can be achieved in various ways, such as moderate reduction of red meat consumption or eating a few more vegetables.”

This is great news for people who want to create a healthier, greener diet without wanting to fully commit to vegetarianism or veganism. Eating meat three or four days out of seven, for example, would drastically increase your health in later life, reducing your risk of getting conditions like diabetes.

There’s no need to go hungry, either: Scientists from the University of Aberdeen found vegetarian diets can be as effective as meat-based diets for appetite control during weight loss. We know high-protein diets encourage satiety, but the vegan diet used soy-based products to achieve the same effect.

This article was published on fit&well.com on 31 Oct 2020

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Healthy eating: Why even part-time vegetarians & vegans stay slim as they age

Xin Chào, tôi là Dieter Buchner, Huấn luyện viên tiết thực phương pháp Buchinger và Người lãnh đạo khóa tiết thực đã được chứng nhận của bạn.

Tại đây, bạn có thể tùy chọn số lượng người tham gia, gói dịch vụ, xe đưa đón v.v… Và hoàn thành đăng ký tham gia.

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