Flat White — Protein

Flat White delivers about 12g protein in a grande—mostly from milk when applicable.

Flat White delivers about 12g protein in a grande—mostly from milk when applicable.

Protein by size (estimates)

SizeProtein
Short6gSize page
Tall9gSize page
Grande12gSize page
Venti15gSize page

← Flat White hub

Last updated: July 13, 2026. All nutrition values are estimates and this site is not affiliated with Starbucks Corporation.