Have you ever spotted your beloved canine companion nibbling on the lush green blades in the backyard and found yourself pondering the reason behind this seemingly peculiar behaviour? This intriguing habit has fascinated pet owners and experts for generations. In this blog, we will explore the various factors that might drive your furry friend to indulge in this grassy feast, unfolding the mystery behind their seemingly strange dietary preferences and habits.
Dogs have been known to display a liking towards occasionally nibbling on grass. While the exact rationale may differ from one dog to another, several theories attempt to shed light on this behaviour, providing explanations for this habit. Understanding the underlying motivations can provide valuable insights into our furry friends’ dietary preferences. Your dog could be eating grass due to various causes, some of which are listed below.
Some dogs simply relish the taste and texture of grass, which might be due to the change in taste, texture, or smell during different seasons. For them, indulging in a bit of greenery might be akin to us savouring a favourite snack. It may not necessarily serve any particular purpose other than fulfilling a canine craving for something different and intriguing, making it a harmless pastime that satisfies their curious taste buds and offers them a brief moment of sensory delight amid their daily routines.
In certain instances, dogs may resort to grass as a means of alleviating boredom and seeking sensory stimulation. Particularly for those lacking sufficient mental or physical engagement, exploring the various textures and tastes of the outdoors can serve as a form of entertainment, helping to pass the time and provide a temporary distraction from their otherwise monotonous routines. This act of grazing on grass could serve as a form of mental enrichment, offering them a much-needed change of pace and an opportunity to engage their senses.
Dogs, like humans, require a certain amount of fibre in their diets to maintain a healthy digestive system. Since grass is a natural source of fibre, sometimes dogs can eat grass instinctively to aid in digestion, especially if their regular diet lacks adequate fibre content. This act of consuming grass could potentially help them regulate their digestive processes, promoting better overall gut health and ensuring smooth bowel movements, contributing to their overall well-being and physical comfort.
Surprisingly, grass contains certain properties that could aid dogs in purging their system of any potentially harmful intestinal parasites. By inducing vomiting through grass consumption, dogs might instinctively attempt to cleanse their digestive tract, ridding themselves of any unwelcome parasites that could be causing discomfort or distress. This natural mechanism could be a part of their innate self-care routine, serving as a means of maintaining their overall health and well-being while safeguarding them from potential health risks posed by internal parasites.
Keeping a close eye on your dog's grass-eating habits is essential for understanding their overall well-being. Despite common assumptions, the act of consuming grass does not necessarily indicate an underlying illness, with reports suggesting that only about 10% of dogs appear to be unwell before indulging in grass. This emphasises the importance of paying attention to other cues to gauge your pet's health accurately and understand if grass is good for dogs.
Furthermore, it is worth noting that most dogs, approximately 25%, who consume grass do not end up vomiting regularly after grazing. This challenges the conventional notion that grass consumption leads to subsequent vomiting. Some experts propose that this behaviour might aid in digestion or cater to specific nutritional requirements, such as the need for additional dietary fibre, indicating a potentially intuitive dietary mechanism in canines.
However, as mentioned previously, it is plausible that your dog simply relishes the taste or texture of grass, viewing it as a form of sensory stimulation. By closely observing your dog's grass-eating patterns and any accompanying behaviours, you can discern whether this habit is a matter of preference or indicative of underlying health issues that require attention. This vigilance allows for a comprehensive understanding of your pet's dietary preferences and potential nutritional needs.
If you suspect your dog is eating grass out of boredom, it is crucial to ensure it is getting sufficient exercise and mental stimulation. Consider incorporating engaging activities into its routine, such as playing interactive games like fetch or providing it with durable chew toys to keep it occupied and mentally stimulated.
In cases where your dog's grass-eating behaviour stems from a potential nutritional deficiency, transitioning to a higher-quality dog food, particularly one rich in dietary fibre, could help address the underlying issue. Consulting with a veterinarian to determine the most suitable dietary adjustments for your dog is advisable to ensure it receives the necessary nutrients.
While most experts agree that grass consumption itself isn't harmful, it's important to remain mindful of potential hazards. Some lawn treatments, including herbicides and pesticides, can be toxic if ingested. Similarly, several common household and garden plants are toxic to dogs, leading to health complications if consumed alongside grass. Being vigilant about the types of plants and substances your dog has access to will significantly mitigate potential risks associated with their grass-eating behaviour.
Yes, it can be normal. Some dogs eat grass occasionally as a natural behaviour, but excessive consumption might indicate a need for dietary or behavioural adjustments.
Not necessarily. If it's occasional and doesn't cause harm, it might be fine. However, if it's excessive or leads to vomiting or other issues, consult a vet.
Monitor for any unusual behaviour or digestive issues. If it continues or causes problems, consult a vet to rule out underlying health issues.
Provide a well-balanced diet and ensure enough physical and mental stimulation. Redirect their focus with toys or activities and consult a vet if the behaviour persists.
Dogs may eat grass due to various reasons, such as dietary deficiencies, upset stomachs, natural behaviour, or simply because they enjoy the taste or texture. If it becomes frequent, consulting a vet can help identify any underlying issues.
Like any companion or roommate, dogs — for all their love and cuteness—have habits we just don’t understand. One question dog owners often ask their pets: “Why? Why would you eat poop?”

When we polled* dog owners recently, most thought it was because a dog is lacking nutrients (49%), they’re anxious (43%) or they just think it tastes good (40%).
Dogs are significantly more likely to eat the droppings of another species (e.g., horses, rabbits) than their own.
We held our noses and got to the bottom of the issue with the help of some experts.
While those in our poll thought this was the number-one reason for the behavior, it has actually never been proven. “It’s a myth dogs eat poop because they’re seeking nutrients they aren’t getting. There’s no evidence to back this,” says
Opens a new windowDr. Jo Gale, BVetMed CertLAS MRCVS, Senior Manager, Global Science Advocacy at Waltham Petcare Science Institute.

According to Opens a new windowDr. Tammie King, Applied Behavior Technical Leader at Waltham Petcare Science Institute, “It can occur where there is lack of environmental enrichment. You see this often in dogs who are kenneled and have a lack of opportunity to exhibit normal canine behavior.” So if you need another excuse to get out and play with your pooch, this is a good one.
Believe it or not, this is the main reason dogs eat poop. Dr. Jo Gale explains: “Dogs are scavengers by nature and use any opportunity to eat what they can, when they can. They consider it a ‘tasty snack.’” Dr. Tammie King adds that “[Dogs eating poop] is a learned behavior. They’ve done it, enjoyed it, and that behavior is repeated.”
We love our dogs so much that we’re willing to trust our best friends on this. Maybe we should come out with a line of doggie breath mints though. Hmm.

“Ingesting feces from any animal increases potential for ingesting parasites and pathogens,” cautions Opens a new windowDr. James Serpell BSc, Phd Professor of Humane Ethics & Animal Welfare at University of Pennsylvania School of Veterinary Medicine. He went on to say, “[It’s] not something humans should ignore, but it's not worth getting too excited about it.”
All the experts we consulted said that if your dog occasionally eats poop, it’s nothing to be overly alarmed by. Just keep an eye on the frequency and their overall health. And as always, make sure they’re getting a nutritious diet and plenty of exercise and attention. If you have any concerns contact your vet.
Despite dogs liking the taste of poop, we’re going to stick with the healthy range of more traditional flavors offered in all IAMS dog foods.
*Surveyed U.S. dog owners, age 18+
Sample Size: n=201
Fielded May 8 to May 10, 2020