It is no secret that many people with long lives come from the Japanese region. This is said to be related to their lifestyle, especially the diet or diet that the Japanese live.
Quoted from the Nippon website, researchers around the world have been studying the benefits of the Japanese diet for some time. One of them is the 1975 diet which is believed to contribute to longevity.
If you think Japanese specialties such as sushi and tempura, become the Japanese diet itself, you are wrong. The reason, they do not eat these foods and have changed over the years.
So, how about the Japanese diet itself? Check out the following review, come on,.
The Origins of the 1975 Diet
The Japanese diet has changed for the better from time to time. However, in reality, there are very few studies to scientifically quantify the health effects of changing Japanese diets.
In one study, researchers applied multiple methodologies by creating weekly menus that represented diets from 2005, 1990, 1975, and 1960. We froze food and gave separate groups of mice eight months to determine their diet.
As a result, compared with the 2005 group, the 1975 and 1990 groups had less visceral fat and were less likely to be obese. In addition, the 1975 diet group had the lowest risk of diabetes and fatty liver.
"Our analysis of gene expression in the liver found relatively active fat breakdown and suppressed fatty acid synthesis in the 1975 cohort, which most likely accounts for the lower accumulation of fat and visceral fat in the liver," the researchers quoted Nippon as saying.
In terms of food, the 1975 diet was higher in nuts, fruits, seaweed, seafood, herbs, and spices than the other three types of diet.
Prevention of Aging Related Diseases
This dietary research also shows a comparative impact on longevity and the aging process. It appears that at week 24, there was a group of mice that experienced physical aging, but at week 48 the aging was more pronounced in the 2005 group, compared to the 1990 and 1975 groups.
However, the slowest aging occurred in the group of mice that underwent the 1975 diet. So did the memory improvement. Week 24, the group of mice showed little difference in terms of learning and memory.
Week 48, the group of mice on the 1975 diet showed less loss of memory and learning capacity than the group of mice on the 2005 diet. Furthermore, the 1975 and 1990 groups also had a longer life span than the 2005 group.
It appears that the 1975 group performed very well in terms of longevity. From these results, it can be concluded that the 1990 and 1975 Japanese diets were healthier for rats than in 2005.
1975 Diet In Humans
After conducting research on mice, the researchers, who have received authorization from the Tohoku University Research Ethics Committee, began conducting research using human subjects.
The results show the same effect. The mean body mass index and weight of those in the 1975 diet group had decreased significantly, along with waist circumference.
Plus the level of LDL cholesterol (bad cholesterol) has decreased, while HDL cholesterol (good cholesterol) has increased. Hemoglobin A1C, an indicator of diabetes and pre-diabetes diagnosis, also decreased.
Certain bacteria associated with the risk of disease in the gut in the 1975 group were also observed to be smaller. This suggests that the health benefits of the 1975 Japanese diet are believed to be related to the gut flora and its metabolites.
"In summary, our research to date supports the hypothesis that, in terms of health and longevity, the 1975 Japanese diet was superior to today's typical Japanese diet," the researchers said.