Calories in Starbucks Decaf Flat White with whole milk come to 76 for the one size this drink is served in — a small, espresso-forward pour with steamed whole milk and minimal foam.
Like the caffeinated Flat White, this comes in a single compact size rather than the Tall-through-Venti range most drinks offer, keeping the milk-to-espresso ratio tight and the calorie count low.
For a lighter version, both lactose-free and low-fat milk bring this down to 59 calories.
Decaf Flat White - whole milk Nutrition Facts
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Decaf Flat White - whole milk
–/100Calories
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Long-Term Health Impact
After 1 Week
Drinking a daily Grande Decaf Flat White - whole milk adds 532 calories to your week — about 102 minutes of brisk walking to offset.
After 1 Month
Over a month, that's 2280 calories — roughly 0.7 lb of potential weight gain if it isn't offset by activity.
After 1 Year
Over a year, a daily Grande Decaf Flat White - whole milk totals 27740 calories and 1.9kg of sugar — equivalent to about 277 miles of jogging to burn off.

