As you probably already know, caffeine is a stimulant and may interfere with your sleeping patterns. What you might not be aware of, however, is that poor sleeping patterns may in turn be having an impact on your weight.

The half-life of caffeine is about five to six hours for the average adult. This means it takes about five to six hours for your body to process and get rid of half the caffeine in your system.

So, if you have a cup of coffee at midday, you’ll still have half the caffeine in your system at 6pm and a quarter at midnight. This residual caffeine in your system can interfere with your sleep – though you may not be aware of it if you’re used to having it.

Sleep deprivation can impact on your weight by increasing your cravings for sweet and ultra-processed foods, impairing your decision making when it comes to healthy choices, and making you less inclined to participate in physical activity.

This is why we recommend being mindful of your caffeine intake and trying to reduce it.

Here are our top tips for reducing your intake:

  • Try not to go over one to two cups of caffeinated coffee or tea a day, preferably in the morning
  • Try switching to decaffeinated coffee or tea, especially if it’s the flavour you enjoy
  • Adding a splash of milk is fine, however, if you currently add sugar, honey, or sweetener, try to gradually reduce this until you’re able to enjoy it without
  • Try a few of our flavoured water recipes here as alternatives to caffeinated drinks

If you're currently reliant on caffeine to be more alert, we'd recommend focusing on getting better quality, restful sleep at night instead. One of the best ways to promote more restful sleep is to reduce your daily caffeine intake.

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