Intestinal parasites in the dog are frequent and widespread. Among those who most often afflict our four-legged friends there are the nematodes or round worms (eg ascarids, known by all puppy owners), cestods or tenie (the Dipylidium caninum, that is, the Tenia transmitted by the flea ) and protozoa (Giardia or Toxoplasma). Each of these parasites, if present abnormally, can give rise to the corresponding parasitic disease. Scientific research has identified new approach techniques and new solutions to preserve the state of well-being of the gastrointestinal tract, highlighting specific peculiarities that had so far been ignored. One such aspect is the so-called microbiotics that you often hear about both men and animals. "By intestinal microbiotics we mean a certain complex of bacteria, viruses, protozoa and fungi that co-inhabit both the human and the animal's gastrointestinal tract. They are about 10,000 times more than any host cell, and modern research is pointing out how the microbiotics are involved in determining the state of well-being or the onset of certain diseases, " explains Dr Maria Mayer, a veterinarian and homeopathic physician . "It is interesting to note that new research no longer distinguishes our intestines from 'good' and 'bad', but try to differentiate these components in their quantity and effects on the body. We must remember when we talk of intestinal parasites - such as Giardia, for example - that may be normal guests of the intestines of healthy animals, if they are present in the right limits." However, when the microbiotics are altered and specific symptoms (such as diarrhea or frequent vomiting) emerge, it is necessary to help our four-legged friend to restore proper bowel function that ensures their well-being and health.