People who eat three fruit or vegetables a day are 40% less likely to fall ...

The best way to ‘eat for immunity’ is to balance calories and ensure you get plenty of good fats, fibre, quality carbs, diverse protein sources and phyto-nutrients (biologically active chemical compounds found in plants). So ensure your plate is filled with these five Fs (OK, one is a Ph but it still counts…!).

FATS – Carefully select the most beneficial, such as polyunsaturated and monounsaturated fats, found in olive oils, oily fish, avocados, seeds and nuts.

PHYTONUTRIENTS – My superfoods. They act as a natural pesticide, helping to protect plants from predators. So it’s no surprise that regular consumption helps to prevent us from getting sick, too. There are over 25,000 different ones recorded across many foods – not only in fruits and veg, but in pulses, tea, coffee, red wine, cacao, herbs, spices and olive oil. It’s the collective power of phytonutrients that we are after, and, as a rule of thumb, more colourful fruit and veg equals more phytonutrients.

FIBRE – This provides great fodder for all the different beneficial micro-organisms living in us, and might just be the life-saving food 90 per cent of us aren’t eating enough of. Get it from fruit, veg, nuts and seeds, oats, lentils and rice, as well as cooked and cooled white potatoes.

FISH – A source of essential fats, which we can only get from our

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