Calories in Starbucks Misto with low-fat milk range from 44 in a Short to 127 in a Venti. This is the milk Starbucks pours by default in most US stores when you order a Misto without specifying.
A Grande has 97 calories with 3.6g of fat and 8.1g of sugar, lighter than the whole milk version’s 124 calories but with essentially the same coffee flavor since it’s the milk half doing the heavy lifting.
Because low-fat is the standard pour, this is the most common calorie count you’ll actually run into ordering a Misto at the counter.
Misto - low-fat milk Nutrition Facts
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Misto - low-fat milk
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Long-Term Health Impact
After 1 Week
Drinking a daily Grande Misto - low-fat milk adds 679 calories to your week — about 131 minutes of brisk walking to offset.
After 1 Month
Over a month, that's 2910 calories — roughly 0.8 lb of potential weight gain if it isn't offset by activity.
After 1 Year
Over a year, a daily Grande Misto - low-fat milk totals 35405 calories and 3.0kg of sugar — equivalent to about 354 miles of jogging to burn off.

