Counting calories aren’t a sure-fire way to ensure weight loss, says Eran Segal, a researcher at the Weizmann Institute of Science.
Segal says people process diets and food differently. For example, one person could eat 2,000 calories a day while another consumes 2,500, but both lose weight. Or, two people can eat the same thing while one loses weight and the other doesn’t.
That may be because of how a person’s blood glucose level responds to the food and the insulin the body secrets, impacting the amount of fat to be stored.
Gut bacteria is key in the processing and metabolizing of food. Everyone has their own individual gut-bacteria composition.
“We are still, as a scientific community, trying to understand what is a good and what is a bad bacterial composition. And how we can also change that with diet,” he said.
They hope to profile an individual’s bacterial composition and figure out which foods works best for them.
Read more from Business Insider, here.