Is your digestion fast or slow? Find out with the ‘sweetcorn test’ and what it means

Many of us pay attention to the foods we’re putting in our bodies – asking ourselves whether they’re nutritious and healthy for us. But have you ever stopped to ask yourself how fast this food is moving through your gut? The answer to this question is actually really important, as the speed that food moves through your digestive tract affects your health and wellbeing in many ways.

Once you’ve chewed up and swallowed your meal, this food begins its journey along the gastrointestinal tract – a long and winding pathway that begins at the mouth and ends at the anus. Along the way, it reaches specialist organs that churn and digest (stomach), absorb nutrients (small intestine) and absorb water and salts (large intestine).

The movement of food through the digestive tract is known as gut motility. This process is partly controlled by the trillions of bacteria present in our gut. The gut microbiome is extremely important as these bacteria help develop our immune system and break down food.

So, when we eat, we’re not just feeding ourselves – we’re feeding the micro-helpers present in the intestine. To thank us, the bacteria produce small molecules called metabolites that boost our immune system and keep our gut moving by stimulating the intestinal nerves so they...

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