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Digital Subscriptions > Simply Vegan > Nov 2019 > Antioxidants explained

Antioxidants explained

Dr Justine Butler explains what they are, how they help us and where to fi nd them


Dr Justine Butler is a Senior Researcher & Writer at Viva! Health, which is part of the charity Viva! They provide information and monitor scientifi c research linking diet to health. Find out more at

It was November and I was throwing a ‘Mexican Day of the Dead’-themed party. I’d spent much of the afternoon mashing avocados and was really pleased with my big bowl of vibrant green guacamole which I set aside for later. Come the party, it had turned into a dull, unappetising grey sludge — I’d forgotten to add lime juice.

The discolouration was a natural reaction between the avocado and oxygen, a process called ‘oxidation’. It’s the same thing that causes apple slices to brown when they’re exposed to the air and a similar process takes place on your car when rust forms on patches of bare steel exposed to oxygen and moisture.

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About Simply Vegan

Simply Vegan has a fresh new look! We've improved our recipes, making them quicker and easier, and tailored our features to inform you on all aspects of your vegan lifestyle – including health, ethics and environmental issues. This issue, we bring you the tastiest 30-minute meals to take the stress out of cooking, along with easy on-the-go lunches and snacks plus meals that cost less than £2 per portion. We also meet Beyoncé's nutritionist, Marco Borges, who helped the singer go vegan. Also in our exciting new issue: • How to spread the word this World Vegan Month • You v Climate Crisis: find out what you can do to help • 6 of the best vegan-friendly retreats • On test: mock meats • Antioxidants: what are they and how do they help us? • How to fuel your fitness on a vegan diet • Autumn fashion: the best cruelty-free brands • Vegan beauty news and skincare buys • Singer Gabrielle Aplin talks animal rights • WIN! An Italian eco break worth £1,300!