Calories in Starbucks Signature Iced Brown Sugar Oat Shaken Espresso with low-fat milk run from 101 in a Tall to 156 in a Venti, only offered in Tall, Grande, and Venti sizes.
A Grande has 130 calories with 2.6g of fat, matching the whole milk listing exactly. The “low-fat” label here is really just a naming artifact, since this shaken espresso is always finished with oatmilk rather than any dairy option.
Whichever milk name you see on the menu for this drink, the actual nutrition and ingredients stay the same, so there’s no need to specify a milk when ordering.
Signature Iced Brown Sugar Oat Shaken Espresso - low-fat milk Nutrition Facts
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Signature Iced Brown Sugar Oat Shaken Espresso - low-fat milk
–/100Calories
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Long-Term Health Impact
After 1 Week
Drinking a daily Grande Signature Iced Brown Sugar Oat Shaken Espresso - low-fat milk 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 Signature Iced Brown Sugar Oat Shaken Espresso - low-fat milk totals 47450 calories and 7.1kg of sugar — equivalent to about 474 miles of jogging to burn off.

