This is how fruit juice affects your gut

This is how fruit juice affects your gut

This is how fruit juice affects your gut

According to a new study, it overflows into areas of our gut that aren’t supposed to ever see sugar. 

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While it was previously though that fructose, found in fruit juice, is processed by the liver, a new study has found that it passes through areas of our gut that aren’t designed to process sugar.

The findings, published in the journal Cell Metabolism, revealed that large amounts of fructose are processed mainly in the small intestine and passes through the microbiome of the large intestine and colon, which is designed to never see sugar.

Researchers from Princeton University in New Jersey used mice to study how fructose travels through the digestive system and found that there is a psychological difference in how the body processes different amounts of sugar.

The team observed that more than 90 per cent of fructose was not processed in the liver, but instead in small intestines of the mice.

Lead researcher Dr. Joshua D. Rabinowitz of the Lewis-Sigler Institute for Integrative Genomics at Princeton University, explained that the fructose not absorbed into the small intestine overflowed through to the colon, where it comes into contact with the microbiome, which is the microbiotic flora that inhabits the large intestine and colon.

“One can eat an infinite amount of carbohydrates, and there will be nary a molecule of glucose that enters the microbiome.”

“But as soon as you drink the soda or juice, the microbiome is seeing an extremely powerful nutrient that it was designed to never see.”

The investigators also found that the small intestine clears fructose more efficiently after a meal, compared to periods of fasting such as in the morning or mid-afternoon.

“We saw that feeding of the mice prior to the sugar exposure enhanced the small intestine’s ability to process fructose,” Dr. Rabinowitz said.

“And that protected the liver and the microbiome from sugar exposure.”

The study reinforces the advice to limit sweets to moderate quantities after meals, and avoid consuming fruit juice outside of mealtimes and soda drinks entirely.

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