All flavors have zero chalky textures because we use a superior refining process that removes all of the larger particulates and indigestible proteins plus other compounds. They shake up, or blend up with ice very smoothly.
Regarding a Stevia aftertaste? Stevia is a natural, no calorie sweetener that is loaded with many beneficial phytonutrients. Eastern cultures have been using it safely for centuries! While many Stevias do have a unique aftertaste, we use such a little amount, in fact it’s the last ingredient on the label, that it would take a keen palate to detect it. Also, ours is organic. The source does matter! We find that combining just the right amount of Stevia with another no calorie natural sweetener - Lou Han Guo (Monk Fruit), that it provides a perfect front and back end no guilt sweetness experience!