“High in antioxidants” is on half the labels in the shop, but few people could say what an antioxidant actually is. The good news: the concept is simple, and the practical advice is even simpler.
This guide demystifies antioxidants, points you to the foods richest in them, and explains why the bottle is usually the wrong place to look.
What antioxidants are
Everyday processes in your body, plus things like pollution and sunlight, produce unstable molecules called free radicals. Antioxidants are compounds that help keep those in check. They are not one single substance — the group includes vitamin C, vitamin E, beta-carotene, selenium, and a huge range of plant compounds called polyphenols and flavonoids.
Where to find them
- Colourful fruit — berries especially, plus citrus and grapes.
- Dark leafy greens and bright vegetables — spinach, kale, peppers, beetroot.
- Nuts and seeds.
- Dark chocolate (the higher-cocoa kind), in moderation.
- Green tea and coffee.
- Herbs and spices such as cinnamon, turmeric, and cloves.
Why food beats the bottle
This is the part the labels skip: getting antioxidants from whole foods is associated with good health, but high-dose antioxidant supplements have not shown the same benefit in research — and some high-dose versions have been linked with harm rather than help. The food matrix — fibre, vitamins, and plant compounds together — seems to matter.
How they fit your plate
You do not need to count anything. Aim for colour and variety across the week — different fruits and vegetables, some nuts and seeds, a cup of tea or coffee — and you are getting a broad mix of antioxidants without thinking about it.
A sensible note
If you are considering antioxidant supplements for a specific reason, talk to your provider first, since high doses are not automatically safe or helpful.
Common questions
What are antioxidants?
Compounds that help keep unstable molecules called free radicals in check. They include vitamin C, vitamin E, beta-carotene, selenium, and many plant compounds — not a single substance.
What foods are highest in antioxidants?
Colourful fruit (especially berries), dark leafy greens and bright vegetables, nuts and seeds, dark chocolate, green tea and coffee, and many herbs and spices.
Should I take antioxidant supplements?
Food is the better-supported source. High-dose antioxidant supplements have not shown the same benefit and some have been linked with harm, so check with your provider before taking them.
Antioxidants are simpler than the marketing suggests: they come bundled, for free, in colourful whole foods. Eat a varied, vivid plate across the week and the bottle becomes unnecessary.
Our Nutrition & Anti-Inflammatory guides break this down in plain English — food lists, simple swaps, and a realistic way to make it stick — without the hype.
Explore the Nutrition & Anti-Inflammatory guides →