Calories in Starbucks Decaf Iced Brown Sugar Oat Shaken Espresso run from 102 in a Tall to 157 in a Venti, this being decaf espresso shaken with brown sugar syrup and cinnamon over oatmilk.
A Grande comes to 130 calories with sugar at 19.4g, fat at 2.6g and protein at 5.3g — the oatmilk base means this drink runs a bit different nutritionally than dairy versions of similar shaken espresso drinks, generally lower in fat while carrying its own naturally occurring sugars.
For a caffeinated version of this same flavor combination, the regular Brown Sugar Oat Shaken Espresso carries a similar calorie profile with the caffeine included.
Decaf Iced Brown Sugar Oat Shaken Espresso Nutrition Facts
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Decaf Iced Brown Sugar Oat Shaken Espresso
–/100Calories
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Long-Term Health Impact
After 1 Week
Drinking a daily Grande Decaf Iced Brown Sugar Oat Shaken Espresso adds 910 calories to your week — about 175 minutes of brisk walking to offset.
After 1 Month
Over a month, that's 3900 calories — roughly 1.1 lb of potential weight gain if it isn't offset by activity.
After 1 Year
Over a year, a daily Grande Decaf Iced Brown Sugar Oat Shaken Espresso totals 47450 calories and 7.1kg of sugar — equivalent to about 474 miles of jogging to burn off.

