A healthy diet is only one part of a healthy lifestyle. It is also really important to get regular activity in.
The Ministry of Health physical activity guidelines recommends that healthy adults do a minimum of 150mins of moderate aerobic activity spread over a week. Although for extra health benefits aiming for 300mins of activity spread over the week is ideal.
Moderate activity is something that gets your heart rate up. You should still be able to talk, but you will be breathing heavier than if you were chatting to a friend over coffee.
Muscle strength training should also be incorporated twice a week. Plenty of ways to do that without joining the gym if you are not a fan. Take a look online for some home exercises.
If you aren't quite up to these levels yet - don't panic - just start slowly increasing at a level appropriate to you. Something is better than nothing!
With the weather like it is in Taranaki right now, and facilities like the walkway and the parks there is good reason to get out and about. Take a friend (human or furry) to make it even more enjoyable ☺