Added sugar is what separates these. The Grande Iced Banana Protein Cream Matcha carries an estimated 27g, 2.7 times the 10g per-meal limit, while the lowest have 0g. Caffeine runs from 55mg to 255mg.
The 19 drinks in this section range from 200 calories for the Starbucks US Iced Sugar-Free Vanilla Protein Latte (Grande) up to 410 calories for the Starbucks US Iced Vanilla Protein Cream Shaken Espresso (Grande), in the standard size. Every size has its own page, listed below. Boone measures added sugar against the US per-meal limit and sodium against limits by age and sex, and the calculator on every page can switch to UK guidance.