This dog-like phenomenon is not only a mystery to dog owners but also to researchers, because the fact is that 90% of all dogs occasionally eat grass. The vernacular, however, has several explanations ready for this behavior, such as: "If a dog eats grass, it only promotes his nausea" or "It could be an indication of insufficient ball substances or vitamins in the diet"
However which of these theses is correct?
According to a study by SJ Bjone of the University of New England in Australia, out of a total of 1399 grass weed surveys tested, only six dogs were handed over. This is also confirmed by numerous other studies in which researchers and veterinarians have devoted themselves to this topic.
It can be assumed that eating grass does not serve as an emetic of the dog.
Furthermore, in extensive observations and tests, the knowledge was gained that the grass feed on both wolves and in dogs occur and it can be assumed that this behavior despite domestication from the wolfberry has been preserved. It is therefore innate whereby the feeding habits of the mother dog have an increasing effect on the feeding behavior of a puppy. It was particularly noticeable that young plants, grasses and cereal plants were preferred regardless of weather and race. If the dog likes to eat vegetarian, special care should be taken with poisonous plants such as ivy, tomato plants, rhubarb, onions, boxwood, jasmine, wisteria, laburnum, clematis, oleanders and daffodils.
Vitamin or fiber deficiency?
This thesis persists in our consciousness, but was refuted in said studies, since in this case a regular grass intake of the dog would have to be made. However, they only eat grass at very irregular intervals, which also did not support the theory of vitamin deficiency. In addition, even well-fed dogs eat grass and the amount consumed is too small for a deficiency compensation.
As already indicated before, the wild relatives of our dogs, such as wolves, coyotes and jackals, are in fact no pure carnivores, in which, depending on the environment, plants were also part of the nutritional spectrum. Finally, it remains to be stated only that grass eating in dogs is a relic of a species-specific nutritional behavior, which seems to us humans only so strange, because we often see the dog as a pure carnivore.