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Health

Where does your gut microbiome really come from - and does it matter?

We are told our gut microbiomes are set from birth with babies born by C-section missing out, but factors later in life seem to be just as important  

By Clare Wilson

3 October 2023

A person feeds their daughter using a spoon. Your diet at an early age can affect how your microbiome develops

Your diet at an early age can affect how your microbiome develops

Shutterstock/Monkey Business Images

Imagine a remote island, recently formed by volcanic activity, in the middle of the ocean. At first, it is lifeless, but a growing variety of plants take hold, providing food for pioneering animal species, until eventually there is a diverse and flourishing ecosystem.

This is a useful way to think about how our gut ecosystems develop. “Your microbiome goes on a journey,” says at the University of Aberdeen, UK. “When you’re born, some bugs get in and then, when you start eating…

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