According to the US Health Day website, scholars at the Duke University Institute of Genomics Science and Policy found that different diets can affect the composition of human colonies, especially meat, which may worsen the intestinal colony environment.
There are trillions of bacteria in each person’s intestines, which play an important role in digestion, immunity, and even weight regulation. The researchers convened six men and four women, aged between 21 and 33. During the first 4 days of the experiment, they had a normal diet; in the next 5 days, they turned to eating whole vegetarian or whole meat; then they returned to normal eating habits.
The results showed that the whole meat caused a huge change in the bacteria in the intestine, which promoted the growth of 22 kinds of bacteria; while the vegetarian diet only made the three kinds of bacteria more. Scientists say the change may explain why excessive fat intake increases the risk of some diseases, such as enteritis and ulcerative colitis.