Combine chia seeds, milk, and protein powder in a jar or glass bowl. Chill in the fridge for at least one hour or for best results - overnight.
Once out of the fridge give it a good stir, making sure you have a thick gel-like consistency. Taste and sweeten, if needed.
Place three peeled kiwis in a blender or food processor and blitz until pureed..
Divide the chia seeds and kiwi puree evenly between 2 glasses. First, a layer of chia seeds, then kiwi slices, and top with another layer of chia seeds.
Top each pudding with fresh berries and sliced kiwi.