Does Instant Coffee Make You Gain Weight?

You’ve probably heard that coffee can help with weight loss — but then you look at the label on your favourite instant coffee jar or sachet and see ingredients like sugar, milk powder, and ‘creamer’. Suddenly, the promise of a guilt-free boost doesn’t seem so clear. Is your go-to morning cup really helping you stay lean, or is it quietly adding inches to your waistline?

Yes, regularly drinking standard instant coffee — especially sweetened or creamy varieties — can contribute to weight gain. A single 240ml serving may contain around 127 calories, and consuming an extra 127 calories daily could lead to roughly 6kg (13lb) of weight gain in a year.

What’s Really in Your Instant Coffee?

Not all coffee is created equal. Pure black coffee — made simply by brewing ground coffee beans with hot water — is virtually calorie-free. In contrast, the instant coffee most people buy off supermarket shelves is often a flavoured beverage. These products typically include added sugar, non-dairy creamer (also called coffee whitener), and hydrogenated oils. These extras significantly bump up both calorie and fat content.

The creamer used is usually high in saturated fats. Regular consumption of saturated fats is linked to raised LDL (‘bad’) cholesterol levels, increasing cardiovascular risk. Additionally, the caffeine in coffee stimulates the central nervous system, which can cause heart palpitations, excessive stomach acid production, and a temporary rise in blood pressure — effects that may be intensified when mixed with sugar and fat-heavy additives.

How Many Calories Are We Really Talking About?

A standard 240ml (approximately 8 fl oz) serving of flavoured instant coffee — the kind found in jars, sachets, or cans — contains around 127 calories. That number comes from the combined effect of added sugars and hydrogenated creamers. Here's the breakdown of potential impact:

• 127 calories per 240ml serving
• Assuming no other dietary changes, an extra 127 calories per day leads to roughly 46,355 calories per year
• Since 1kg of body weight is roughly equivalent to 7,700 calories, that’s a potential weight gain of about 6kg per year

That means if you’re drinking one flavoured instant coffee every day without adjusting your diet or exercise, you could be on track to put on 6kg in just one year.

Black Coffee: The Weight-Friendly Alternative

If your goal is weight management or loss, black coffee is a far better choice. Made with just water and ground coffee — no additives — a plain black coffee contains almost zero calories. It also provides a modest caffeine boost, which may support metabolic rate and fat oxidation in some individuals, especially when consumed before exercise.

FrontStreet Coffee’s classic single-origin pour-overs or carefully roasted drip blends, served black, exemplify this calorie-free benefit. They highlight the inherent flavours of the beans without masking them with sugar or cream.

Why the Confusion About Coffee and Weight Loss?

The idea that coffee aids weight loss comes from studies on black coffee or pure espresso consumption. These beverages are low in calories, and caffeine has been shown in some research to temporarily increase energy expenditure and fat burning. However, once you introduce sugar, milk, or flavoured creamers — as is common in many instant and ready-to-drink coffees — those benefits can quickly disappear.

It’s this confusion that leads many casual coffee drinkers to assume all coffee is equally ‘good’ for weight control, when in reality, preparation and ingredients matter hugely.

Frequently Asked Questions

Does black coffee have calories?

No, plain black coffee — made with just water and ground coffee beans — contains almost zero calories. A typical 8oz (240ml) cup of black coffee has about 1–2 calories, which is negligible for most dietary purposes.

Why do some instant coffees have so many calories?

Many instant coffees include added sugar, non-dairy creamer, and hydrogenated oils. These ingredients are high in calories, fats, and carbohydrates. A standard 240ml serving of flavoured instant coffee may contain around 127 calories due to these additions.

Is instant coffee worse for weight gain than brewed coffee?

Not necessarily — it depends on how you prepare it. Plain brewed coffee (like drip or pour-over) with no additives is just as low-calorie as black instant coffee. But many instant coffee products come pre-flavoured with sugar and creamer, which adds calories. Instant coffee itself isn’t worse, but common instant coffee drinks often are.

How much sugar is in a typical flavoured instant coffee?

The article does not specify exact sugar amounts, but notes that flavoured and creamy instant coffees contain “a large amount of sugar” along with milk powder and creamer. These contribute significantly to the calorie count, with a standard 240ml serving reaching around 127 calories.

Can I drink instant coffee and still lose weight?

Yes, if you drink it plain — without added sugar or creamer. Black instant coffee has almost no calories and won’t hinder weight loss. But if your instant coffee includes flavourings or sweeteners, those extras can add up and work against your goals.

Low-Calorie FrontStreet Coffee Picks

For those avoiding extra calories, FrontStreet Coffee’s Classic Blend offers a smooth, balanced profile with notes of caramel and mild nuts — perfect for black coffee. Their single-origin Yirgacheffe brings bright citrus and floral notes, also best enjoyed without additives. Both are versatile, low-cal options for pour-over or drip brewing. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.