Dietary diversity can reduce the risk of disease, how to achieve dietary diversity?

!-- webeditor: page title-- March 24, 2020 / -- Since the late 1970s, a varied diet has been considered an important part of a healthy diet.
ensuring a balanced diet is essential for people to stay healthy.
dietary diversity is also a key indicator of dietary quality and nutritional atrophicity.
but what is the composition of a varied diet? What does it have to do with disease risk? Nutritional epidemiology, a medical research area that studies the relationship between nutrition and health in the population, is moving from a nutrition-based approach to a diet-based approach to understanding the relationship between food, nutrition and health.
because recent evidence suggests that the overall pattern of daily and long-term dietary intake is more predictive of disease risk.
changes bring health at the moment, there is no standardized way to assess dietary diversity, making it difficult to compare studies of the health effects of dietary diversity.
Despite this problem, most studies have a consensus that a diverse diet of five to six core food groups can improve survival and reduce disease compared to a diet of only three core food groups.
Photo Source: A preliminary review of published literature by researchers shows growing evidence that dietary diversity (at least five to six foods) is associated with depression, type 2 diabetes, asthma, food allergies, metabolic syndrome, osteoporosis and even a reduced risk of death.
dietary diversity, particularly in vegetables and fruits, is also associated with reducing the risk of several cancers, including oral, pharynx, throat, lung and bladder cancers.
, key risk factors for chronic diseases associated with metabolism and circulation also performed better in healthy and unhealthy populations with a more diverse diet.
the most consistent improvement was to reduce high blood pressure and serum triglyceride levels.
the risk of dietary diversity, the relationship between dietary diversity and the risk of obesity or colorectal cancer is more controversial.
eat more kinds of food may eat more calories, which in turn may lead to obesity.
other studies have shown a positive link between dietary diversity and weight.
, however, most studies provide a negative link between diversity and obesity risk, while other reports have found no link.
this seemingly inconsistent phenomenon in the literature may emphasize the importance of diversity in specific food groups.
, for example, a study of 452,269 participants from 10 European countries showed that despite increased energy intake, the average body mass index of those who ate the most fruits and vegetables declined.
more diversity in specific food groups may also explain conflicting results of colorectal cancer.
a study, after 13 years of follow-up, eating large amounts of fruit was associated with a high risk of colorectal cancer, but in another case-control study conducted in northern Italy, it was not related to rectal cancer.
, the study also showed that eating more varieties of fruits and vegetables reduced the risk of colorectal cancer.
note that when people increase the diversity of vegetables they eat, the reduction in disease risk is most consistent.
, however, other types of food, such as cereals, are either not related to health outcomes or contrary to health outcomes, as is the case with eating more kinds of meat.
Healthy Eating Canada has a new food guide that is a practical tool for public nutrition education and part of the National Dietary Improvement Policy.
The Canadian Food Guide has sparked a debate about what it means to eat healthy in Canada, with politicians also involved.
we would like to raise two specific questions about the new food guidelines, which deserve more research and policy attention.
First, the new Canadian Food Guide is now limited to three major food categories, a reduction from the four food categories in the previous Food Guide and five to six food categories in the Canadian Dietary Guidelines in the 1940s.
message to Canadians is that a healthy diet requires only three different foods, even though science tells us that's not the case.
researchers reviewed evidence that a person's health and survival improved if his diet included at least five to six major foods, such as fruits, vegetables, dairy products, grains and protein.
, canadians are less guided by the meaning of diversity in their diet.
, Canadians have been given at least two specific recommendations to ensure adequate intake of vitamin A and folic acid by eating a dark green vegetable and an orange vegetable or orange fruit.
: The Australian Guide to Healthy Eating defines dietary diversity: consumers are told to eat different types and colours of vegetables, as well as legumes.
Dietary Guidelines specifically recommend that consumers choose "a wide variety of vegetables: dark green, red and orange, beans (beans and peas), starch and others."
" dietary guidelines provide more clear guidance to their citizens, and even researchers, on what it means to eat a varied diet as part of a healthy diet.
need to pay more policy and research attention to dietary diversity.
this should include more specific recommendations that reflect the different health effects of choosing multiple foods in the vegetable, protein, dairy, fruit and cereal food group.
clearly defined meanings and measurements, especially in the use of national dietary guidelines, which are critical to the population.
() Reference: 1 Add variety to your diet lowers disease risk. But what does the variety mean? Max Leenders et al. Subtypes of fruit and vegetables, variety in insin and risk of colon and rectal cancer in the European Prospective Investigation into Cancer and Nutrition. International Journal of Cancer. 2015. DOI:https://doi.org/10.1002/ijc.29640/!--/ewebeditor:page--!--ewebeditor:title="--3"Eat a variety of of healthy foods" (4) Australian Guide to Healthy Eating !--/ewebeditor:page.