Iced Coffee Can Contain Over 500 Calories, Study Finds

When the sun climbs and thirst kicks in, many reach for a refreshing iced coffee. But what seems like a light, guilt-free choice can come with a surprising calorie load—some versions packing nearly a quarter of your daily energy intake. If you're watching your intake or just curious what's really in that frozen drink, the numbers might shock you.

The quick answer: The highest-calorie iced coffee uncovered in the study contained 561 calories—about the same as a small dinner. Most iced coffees surveyed had over 200 calories, with some topping 450. Sugar, whole milk, and cream are the main culprits.

What the World Cancer Research Fund Found

The World Cancer Research Fund (WCRF), a UK-based health charity, conducted a recent investigation into the calorie content of popular iced coffee drinks. Their findings revealed that many commercially available iced coffees—especially those marketed as seasonal or indulgent—contain far more energy than the average coffee drinker might assume.

According to data reported by the BBC, the majority of the iced coffees studied contained more than 200 calories. Several reached upwards of 450 calories, with the highest recorded at an astonishing 561 calories.

Examples of High-Calorie Iced Coffees

One standout example from the study was Starbucks’ limited-edition "Blackberry Mocha Frappuccino" (referred to in the source as ""), served in a large cup. This drink weighed in at 561 calories—roughly 25% of the daily recommended intake for women. Even without whipped cream, the same beverage contained 457 calories.

Another high-calorie entry came from European chain Caffe Nero. Their skimmed (non-fat) milk version of a mocha iced latte—despite using lower-fat dairy—still contained 452 calories. This demonstrates that even choosing low- or non-fat milk options doesn’t always guarantee a low-calorie drink.

What Makes Iced Coffee So Caloric?

The primary factors driving up the calorie counts in these drinks are added sugars, full-fat milk, and cream. Sweetened flavoured syrups—often made with fruit flavours or chocolate—contribute significant sugar and energy. Whipped cream, frequently layered on top, adds both fat and calories without contributing much nutritional value.

Even when drinkers opt for non-dairy or reduced-fat alternatives, the inclusion of sugary syrups and toppings can keep calorie counts high. The combination of multiple high-energy ingredients turns what seems like a simple coffee into a calorie-dense dessert drink.

Expert Recommendations from WCRF

Dr. Thompson, the science programme director at WCRF, offered clear guidance for those wanting a lower-calorie coffee option. He advised choosing black coffee or coffee with low-fat or skimmed milk, and—crucially—avoiding added sugar, flavoured syrups, and cream.

"If you want to drink coffee, it’s best to go for unsweetened versions with low-fat or skimmed milk," Dr. Thompson said. "Avoid too much cream and sweet fruit syrups, as these add a lot of calories."

Frequently Asked Questions

Which iced coffee had the highest calories in the WCRF study?

The highest-calorie iced coffee in the study was Starbucks’ large Blackberry Mocha Frappuccino, with 561 calories. Without whipped cream, the same drink still contained 457 calories.

Are low-fat or skimmed milk iced coffees always low calorie?

No. The study found that Caffe Nero’s skimmed milk mocha iced latte contained 452 calories, showing that even reduced-fat milk doesn’t guarantee a low-calorie drink when other high-calorie ingredients like syrup or cream are included.

How many calories are in most iced coffees?

Most iced coffees in the study contained over 200 calories, with several exceeding 450 calories. The average consumer may not realise how energy-dense these drinks can be.

What ingredients add the most calories to iced coffee?

Sugar, full-fat milk, whipped cream, and flavoured syrups are the main contributors to the high calorie content in many iced coffee drinks.

What does WCRF recommend for a healthier coffee choice?

WCRF advises choosing unsweetened coffee with low-fat or skimmed milk, and avoiding added sugar, syrups, and cream to keep calorie intake lower.

Recommended FrontStreet Beans for Iced Coffee

For iced coffee lovers, try FrontStreet Coffee’s Ethiopia Yirgacheffe for floral, citrus brightness; the Kenya Little Tomato for bold berry acidity; or the Classic Blend for a balanced medium roast that shines over ice. All three develop smooth sweetness and complexity when brewed cold. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.