Eating less food may be the key to a long life
Preliminary research suggests that putting just a little food on your plate each day may be key to a longer life.
A small clinical trial showed that people who reduced their calorie intake by just 15 percent over a two-year period saw a significant decrease in their metabolism.
These people also experienced improvements in biomarkers associated with slower aging and longer life.
Specifically, they developed a lower core body temperature, lower blood sugar and insulin levels, and a significant decrease in hormones that calm metabolism, the researchers reported.
These things are known to be lower in people who live longer
Aging studies in animals have linked lower calories to a longer life, but this is the first clinical trial to bridge the gap between animals and humans.
In this study, a medical team recruited 34 healthy people with an average age of 40 to follow a calorie-restricted diet for two years.
The researchers taught study participants how to cut 25 percent of their daily calories using three different models of a healthy diet.
Then the participants were free to follow their diet in any way they chose.
It found that on their own, they achieved a 15 percent reduction in calorie intake that lasted for two years.
On average, the group lost about 10kg, mostly in the first year, although half of them entered the study at a normal weight and the rest were slightly overweight.
Tests showed changes in metabolism and body processes mirror those that have been linked to longer lifespans in animals and humans.
The participants also had a significant reduction in oxidative stress associated with decreased metabolism.
This provides support for controversial theories linking a higher metabolism and increased oxidative stress with faster aging, the researchers said.
When we make energy, we have byproducts of metabolism, and these byproducts called oxygen radicals build up in the body and cause damage to cells and tissues.”
This damage can cause cells to age faster and contribute to diseases such as cancer.
Laboratory studies in mice have shown that damage caused by oxidative stress has no effect on overall lifespan.
It is believed that a lower calorie intake causes the body to use energy more efficiently, and this somehow delays aging.
We know, for example, that there’s a really close connection we don’t understand between fasting and flexibility — the ability to stand up to de-stressing.
And people who want to eat less food in an effort to live longer should focus on portion size while eating a healthy, balanced diet.
They should aim to cut calories by 25 percent, on the basis that they are likely to fall short of the goal.
They should not be discouraged if they do not continue to lose weight in the long term.
The goal is not to lose weight. The goal is to maintain this low intake.”
There is doubt about the ability and ability of a person to continue this pattern of eating.
People may not even be able to cut their calories by eating normal food.
The summary of this study is that calorie restriction provides a window into the aging process, as it slows down aging in humans and animals. Through this, researchers hope to gain insight into how aging occurs so that they can tackle these processes through better means than following a severely restricted diet – Dr. Radwan Ghazal, last update 03/03/2022 – Article source: Study in 22 March in Cell Metabolism.