THE GUARDIAN: Seven ways … to support your immune system

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Our guts contain trillions of microbes that play key roles in the immune system. For example, they promote the production of T cells, which help to trigger immune responses and prevent autoimmune diseases. Having a low-fat, high-fibre diet with plenty of vegetables promotes a broad range of gut bugs and boost levels of beneficial bacteria. “Having a varied diet is likely to be better for your bacteria, which is, in turn, likely to be better for your immune function,” says Professor Sheena Cruickshank of the University of Manchester.