Any diet change induces changes in gut microbiota. Eating tomatoes? Less Mucispirillum in rodents. Eating potato starch? More Rikenellaceae. Eating chicken? Mor

Any diet change induces changes in gut microbiota. Eating tomatoes? Less Mucispirillum in rodents. Eating potato starch? More Rikenellaceae. Eating chicken? More Lactobacillus. It's result of simple natural selection - species better at digesting your food will reproduce faster.