The article does not mention gut bacteria. Does anyone know roughly how much of our food and water intake goes into supporting our gut biome and excreted? Tape

The article does not mention gut bacteria. Does anyone know roughly how much of our food and water intake goes into supporting our gut biome and excreted? Tapeworms were an early weight loss miracle cure (no idea how effective though), and I'm sure someone will be working on a modern version without the side effects.