Costa Coffee Keto Order Guide for UK Customers

The ketogenic diet requires careful attention to carbohydrate intake, even when grabbing a coffee on the go. Costa Coffee, with over 2,700 UK locations, offers several options that fit within a keto framework if you know what to order.

Understanding keto-friendly coffee drinks

Black coffee contains virtually no carbs, making it the safest choice. A standard Americano (2 shots of espresso with hot water) has 0.2g net carbs. The issue arises with milk and syrups. Whole milk contains about 5g carbs per 100ml, while skimmed milk has slightly more due to higher lactose content.

Costa now offers almond milk (2.4g carbs per 100ml) as a lower-carb alternative. A medium flat white made with almond milk contains approximately 4g net carbs, compared to 12g with whole milk. Avoid flavoured syrups (15-20g carbs per pump) and whipped cream (contains sugar).

keto coffee creamer alternatives can help add richness without the carbs. A splash of double cream (0.4g carbs per tbsp) is a better option than milk.

What this means in practice

During winter months when hot drinks dominate, ordering becomes simpler. A large black Americano with a side of double cream (£3.20) allows you to control your fat intake. In summer, iced coffee options require more caution. An iced Americano with sugar-free vanilla syrup (0g carbs) and almond milk keeps carbs low.

Tesco sells Costa-branded coffee beans for £3.50 per 227g bag, useful for home brewing. Their ready-to-drink bottled coffees (all above 15g carbs) should be avoided.

Food options at Costa

The food cabinet presents challenges. Most sandwiches and pastries exceed 30g carbs. Better choices include:

• Cheese and bacon toastie (remove the bread): 2g carbs
• Protein boxes (select cheese and meat components only)
• Almond croissant (25g carbs) as an occasional higher-carb treat

managing keto while travelling requires planning. Costa’s nutritional information, available online, lists all carb counts.

Frequently asked questions

Can I have Costa’s whipped cream on keto?

Costa’s whipped cream contains added sugar, making it unsuitable for strict keto. A small amount (about 2 tbsp) adds 4g carbs. Request your drink without it.

Is sugar-free syrup really keto?

Yes, Costa’s sugar-free vanilla syrup uses sweeteners that don’t impact blood sugar. Each pump adds flavour without carbs.

What’s the lowest carb milk at Costa?

Almond milk has the fewest carbs at 2.4g per 100ml. Coconut milk would be lower but isn’t currently offered.

The bottom line

With awareness of hidden carbs, Costa Coffee can fit into a ketogenic lifestyle. Stick to black coffee or almond milk drinks, avoid syrups and whipped cream, and be selective with food items. If you’d rather not do the macro maths yourself, the Keto Dieting app does it for you on Google Play and the App Store.

References

1. Bueno NB, de Melo IS, de Oliveira SL, da Rocha Ataide T (2013). Very-low-carbohydrate ketogenic diet v. low-fat diet for long-term weight loss: a meta-analysis of randomised controlled trials. British Journal of Nutrition. https://doi.org/10.1017/S0007114513000548
2. Sumithran P, Prendergast LA, Delbridge E, et al. (2013). Ketosis and appetite-mediating nutrients and hormones after weight loss. European Journal of Clinical Nutrition. https://doi.org/10.1038/ejcn.2013.90