Good nutrition would be Innova Evo, Ziwi peak,Orijen,Instincts or a raw meat,bones,organs diet.

Growth can be different for all cats, most grow out by 2 some take until 3. A few purebreds take as long as 4 or 5 but this is coat, not body size which is in full growth at 2 or 3. it all depends on how healthy the mother was during pregnancy/kitten nursing, genetics, how well you feed/ect..

Good nutrition can definitely trigger a late growth spurt in a young cat who was previously malnourished. I suspect, though, that if your kitten is actually growing taller, which indicates skeletal growth rather than just muscle development, that he's closer to 8 mos than he is to 2 yrs. He'll probably stop getting taller pretty soon, but he may continue to fill out his adult muscle mass for another year.

Laurie

Different breeds have different growth rates. My Ragdolls took 3 years to fully develop, about 2 1/2 to become their full size and another 6 months for their color to really set in.

Thanks everybody.
Runswalken, my guys are eating Evo.

Good- Its different for every cat. About 3 years max, 2 is more average.