Is coffee good or bad when dieting?

There is so much discussion about whether coffee is good or bad when dieting. It speeds up your metabolism but also creates sugar mood swings – how are you meant to decide? We’re looking into the pros and cons of coffee and caffeine to clear up the hearsay over the caffeine & weight loss debate!


Controls appetite

When dieting hunger is the biggest pain in the butt. Coffee can help you. The caffeine content of coffee tricks your body into thinking it has just digested sugar. This means that your energy levels will peak and the hunger rumbles will subside momentarily. The water and milk in coffee will also reduce hunger. A lot of the time when we feel hungry, it’s because we’re dehydrated – the hot water in coffee will help to hydrate you. Milk (nut or dairy) will line your stomach so you feel the rumbles less.

The only downside to all this? Caffeine itself is dehydrating and if you have a sugar spike, you’ll also have a sugar low. The best way to prevent these is to drink water and eat a substantial snack or meal alongside  your morning coffee.


We add green coffee to our Breakfast Smoothies for 2 reasons.

  1. It leaves you feeling energised for the rest of the day.
  2. Caffeine increases your rate of calorie burn.

It has been proven that by having caffeinated coffee over decaf speeds up your metabolism and the rate at which you burn fat (1). This means that having caffeine first thing in the morning – either from coffee or our breakfast smoothies, your metabolism will increase for the next few hours at least.

Caffeine helps you work out

Having caffeine before and during exercise increases endurance exercise performance (2). It also increases your energy, allowing you to train harder for longer. Caffeine also helps your mentality as well because it kickstarts the production of serotonin and dopamine – hormones which improve your mood and will allow you to feel more pumped for your workout. Interestingly, caffeine increases the blood flow to your muscles and speeds up your heartbeat. This means your muscles will work more effectively during exercise. With caffeine in your system, you can push your muscles further for faster long-term effects!


The type of coffee counts

The benefits we have discussed above are mostly about the caffeine itself in coffee. Don’t be inclined to order any coffee at your favourite coffee bar because not all are created equal. A double espresso, flat white or filter are all relatively harmless. A Caramelised Pecan Frappacino with salted caramel syrup and extra cream, you won’t be aiding weight loss… You have to be canny when it comes to coffee. Drink it because you enjoy the taste of coffee, not a sugary version of it. Stick to a lightweight caffeine kick and you’ll be furthering your weight loss journey!

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