Unpacking the sugar shock in Costa frappes
The most concerning aspect of Costa frappes is their sugar content, which frequently exceeds the recommended daily intake for adults. While a portion of the sugar in milk-based drinks comes from natural lactose, a large amount is from added 'free sugars' found in syrups and flavourings. For example, a 2023 Which? report highlighted that a Costa frappe with skimmed milk contained 21.3g of sugar. However, more indulgent options, like a Chocolate Fudge Brownie frappe with oat milk, have been found to contain as much as 42.6g of sugar. To put this into perspective, the NHS recommends no more than 30g of free sugars per day for an adult. A single medium frappe could easily push you over this limit, especially when coupled with other dietary sugars throughout the day. This excessive sugar can lead to energy crashes and has been linked to long-term health issues like weight gain and dental problems.
The calorie and fat story
Beyond the sugar, Costa frappes are also calorie-dense beverages that resemble milkshakes more than coffee. The total calorie and fat content are influenced by the choice of milk, syrups, whipped cream, and toppings. For instance, a regular Mocha Cream Frappe made with low-fat milk can still contain over 500 calories and a significant amount of fat. When made with full-fat milk and generous toppings, these numbers climb even higher. For someone on a 2,000-calorie daily diet, a single large frappe can represent a substantial portion of their energy intake. Since these calories are often from sugar and fat rather than nutrient-rich sources, they offer little nutritional value beyond a temporary sugar rush.
A comparison of popular Costa frappes
Let's compare two common choices to see how the nutritional profile can differ based on flavour, size, and modifications.
| Feature | Caramel Frappe (Standard, Medium) | Mocha Frappe (Standard, Medium) | Healthier Iced Coffee (Small, Skimmed Milk, No Syrup) | 
|---|---|---|---|
| Calories | ~350 kcal | ~395 kcal | ~100-150 kcal | 
| Sugar | ~31-37g | ~57g | ~8.7g | 
| Fat | ~9-12g | ~12-16g | Negligible | 
| Flavour | Buttery, sweet caramel notes | Rich, chocolatey flavour | Pure coffee taste, adjustable | 
| Customization | Can be reduced with skimmed milk and no drizzle | Can be reduced with skimmed milk and no whipped cream | Most customizable, inherently lower in sugar and calories | 
| Impact | High sugar and fat, should be a rare treat | High sugar and fat, more of a dessert | Healthier alternative for daily consumption | 
Customizing for a healthier option
If you can't resist a cool, blended coffee, there are ways to make a Costa frappe a less damaging indulgence. Here are some simple customization tips:
- Switch your milk: Opt for skimmed or a lower-calorie plant-based milk instead of full-fat options. This immediately reduces the calorie and fat content.
- Go easy on the syrup: Ask for half the syrup or request sugar-free syrups. This is one of the most effective ways to slash the free sugar count.
- Skip the extras: Say no to whipped cream, chocolate shavings, and caramel drizzles. These are often packed with sugar and add unnecessary calories.
- Choose a smaller size: Downsizing from a large to a small or medium can significantly reduce the overall calorie and sugar intake.
Healthier coffee house alternatives
For those who want to completely avoid the frappe trap, Costa offers plenty of healthier options. These include:
- Iced Americano: Simply coffee and cold water over ice. Naturally very low in calories and sugar. Add a splash of milk if needed.
- Iced Latte or Cappuccino: Order with skimmed milk and no added syrups. You still get a cool, creamy coffee drink but with a much healthier profile.
- Cold Brew: A smoother, less acidic coffee concentrate served over ice. It can be enjoyed black or with a dash of milk.
The verdict on Costa frappes
So, are Costa frappes unhealthy? For the most part, yes. Their standard form is a high-sugar, high-calorie dessert masquerading as a refreshing coffee drink. While a one-off treat won't derail your health, regular consumption can contribute to a range of health issues, including weight gain and blood sugar problems. However, the good news is that with a little mindfulness and a few strategic customizations, you can drastically reduce the unhealthy aspects. By choosing smaller sizes, lower-fat milk, and skipping syrups and toppings, you can enjoy a version that is less of a health bomb. The healthiest choice remains a simple, unadulterated iced coffee, but for those frappe cravings, moderation and modification are key. For more information on recommended sugar intake, visit the NHS Live Well section on sugar.
Conclusion
In summary, Costa frappes are generally considered unhealthy due to their high content of added sugars and calories. They are not a suitable option for daily consumption or as part of a balanced diet. However, understanding the key nutritional information empowers consumers to make informed choices. By opting for customizations or exploring healthier alternatives on the menu, it is possible to enjoy a refreshing drink without the significant health drawbacks associated with the standard frappe offerings.