Cat nibbles plants

I have a small problem with my cat, I'm not sure if this is normal or not, but my cat seems to really like to nibble most of my house plants! I wonder if this is a normal behaviour in a cat or he might be just trying to tell me he is bored or he needs some sort of vitamin supplement?

This is starting to get annoying, because even tho I no longer have a lot house plants right now, the very few I still have left are being nibbled by my cat. I plan to move to another country... and plan to get more plants! So this could become a bigger issue later on. What can I do? Why do you think he does that?

 

Do you ever let your cat outside or is your cat strictly indoors? Sometimes when my cats have stomach problems they like to nibble on grass. I am wondering if your cat is having some digestive problem.

 

No, my cat is a 100% indoors cat. I used to let him out when he was younger, but then he decided it would be a good idea to have a walk around the neighborhood. Long story short... a kid took him! I didn't see him after 6 or 5 months passed. He just showed up outside my place.

I'll have that in mind I own two dogs, and when they have digestive issues they eat grass, I had no idea cats liked to do the exact same thing!