Wash and peel the cucumber, then chop it into small pieces.
Cut the pineapple into chunks, removing the core if desired.
Add the pineapple and cucumber into a blender.
Pour in the water or coconut water.
Squeeze half a lemon for an extra detoxifying effect.
Add chia seeds or flaxseeds for added fiber (optional).
Blend until smooth.
Strain the juice using a fine mesh sieve if you prefer a smoother texture.
Pour into a glass, add fresh mint leaves for a refreshing taste, and enjoy!