Not all cats are affected by catnip, but the majority of cats do exhibit a reaction. According to a study published in the journal BMC Veterinary Research, approximately 70-80% of cats are responsive to catnip. However, the sensitivity to catnip is largely dependent on genetics, and there are some cats that do not respond to catnip at all.

The sensitivity to catnip is due to a genetic trait that is inherited from the cat’s parents. The trait is dominant, which means that if one parent has the trait, there is a high likelihood that their offspring will also have the trait. However, not all cats inherit the trait, and even cats that do inherit the trait may not necessarily exhibit a reaction to catnip.

The sensitivity to catnip usually develops when the cat reaches sexual maturity, which is typically between 3 and 6 months of age. Some cats may not exhibit a reaction to catnip until they are older, while others may exhibit a reaction from a very young age.

It is important to note that the sensitivity to catnip can vary between individual cats, and some cats may exhibit a stronger reaction to catnip than others. Additionally, the intensity and duration of the reaction can also vary, with some cats becoming very active and playful, while others may become more relaxed or sedated.

There are also some cats that may exhibit an adverse reaction to catnip, such as vomiting, diarrhea, or other digestive problems. If your cat exhibits any adverse reactions to catnip, it is best to discontinue its use and consult with a veterinarian.

In conclusion, while the majority of cats are responsive to catnip, not all cats exhibit a reaction to it. The sensitivity to catnip is largely dependent on genetics, and even cats that inherit the trait may not necessarily exhibit a reaction. Additionally, the intensity and duration of the reaction can vary between individual cats, and some cats may exhibit an adverse reaction to catnip.

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