One of the most common ailments in indoor cats is hairball disease, which can cause poor appetite, dry heaving and coughing, alternating constipation and diarrhea, lethargy, and in severe cases, even surgery. Therefore, it's important to be aware of this issue, and one solution is to feed them cat grass. Cat grass is non-toxic and harmless, promotes hairball expulsion in cats, and is a great way to prevent hairball disease. But when can you start feeding them cat grass? 
There isn't a strict age limit for cats to eat cat grass. However, it depends on the cat's individual circumstances. We need to consider factors such as the cat's growth rate, digestive development, whether it's a long-haired cat, how much it sheds, and whether it likes to lick its fur. By observing these factors, we can then determine a suitable time for the cat to eat cat grass.
If your long-haired cat sheds frequently, you should pay attention. Around two or three months old, they should start eating cat grass. Since cats groom themselves frequently, cat grass helps expel hair from their stomachs to maintain their health. In some cases, hairball remedy may even be necessary, as it not only helps expel hair but also protects the cat's digestive system.
If it's just a short-haired cat and the shedding isn't excessive, there's no need to worry, and you can postpone feeding it cat grass accordingly.
If you have any doubts about the above evaluation criteria, you can check the cat's current condition. If it has bloating, gastroenteritis, or loss of appetite, you must feed it cat grass to help it vomit and relieve the symptoms.
