Calories in Starbucks Flat White with low-fat milk come to 59, the same number as every other milk option here — this drink’s nutrition barely shifts between whole, lactose-free, low-fat or semi-skimmed since it’s such a small pour.
Fat stays at 2.0g and protein at 4.2g. If you’re watching fat closely across a bigger drink, that milk choice matters more in something like a Caffe Latte, where the pour is much larger.
This matches the semi-skimmed version exactly, since that’s the same milk under its British name.
Flat White - low-fat milk Nutrition Facts
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Flat White - low-fat milk
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Long-Term Health Impact
After 1 Week
Drinking a daily Grande Flat White - low-fat milk adds 413 calories to your week — about 79 minutes of brisk walking to offset.
After 1 Month
Over a month, that's 1770 calories — roughly 0.5 lb of potential weight gain if it isn't offset by activity.
After 1 Year
Over a year, a daily Grande Flat White - low-fat milk totals 21535 calories and 1.9kg of sugar — equivalent to about 215 miles of jogging to burn off.