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5 foods to avoid before a workout

5 foods to avoid before a workout

Fuelling up before a serious workout is always wise so you don’t crash and burn too soon, but be careful what you put in your body or you’ll end up doing more harm than good.

Here are some foods to avoid before you tie up your trainers:


Although high in protein, beans, hummus and lentils can cause unwanted side effects during your workout such as bloating and indigestion.

Protein Bars

Unless they are moderate to high carb bars, you’ll probably find that they won’t fuel your workout effectively. You need high energy levels to stop you crashing during a workout and these bars just don’t cut it.

Carbonated Drinks

Excessive sugar in these drinks can have unwanted effects. The spike in your blood sugar can lead to a crash later on, and can even leave you with bloating or diarrhoea – side effects that you really don’t want to have mid-workout!

Simple Sugars

Packets of sweets, chocolates, cereals, biscuits – all these high sugar foods can cause reactive hypoglycaemia – when a sudden drop in blood glucose levels takes place after a huge peak in blood sugar. This can leave you tired, with headaches and overall poor performance.

Cheese or Peanut Butter

Although a good balanced diets should include fats such as these, they are extremely slow to burn off and can slow the absorption of nutrients making them not so ideal to consume before a workout. It’s far better to combine both protein and carbs.


the author

Laura Briggs

Laura is a fitness writer who loves running ultra marathons. In addition to training for her epic runs she finds time for strength training, Pilates and Yoga. .