But I didn't find it necessary given I used homemade almond milk (which is already a bit sweet), and a really good quality Matcha powder (by the matcha reserve). (twospoons.ca)
Or maybe it's thanks to the Theanine in good quality matcha green tea. (willfrolicforfood.com)
Furthermore the vibrant green of good quality matcha means more chlorophyll is present. (healthytokyo.com)