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Date TimeJuly 25, 2019
VoiceDrinking more than two cups of coffee a day during pregnancy may impair the development of the baby’s liver, new research suggests.
Two Cups Of Coffee Per Day During Pregnancy May Damage Babys Liver
In the study, pregnant rats given caffeine had offspring with lower birth weights, altered growth and stress hormone levels and impaired liver development. Published in the Journal Of Endocrinology, the findings indicate the equivalent of two to three cups of coffee may alter stress and growth hormone levels.
It suggests this is done in a manner that can impair growth and development, and increase the risk of liver disease in adulthood. 
The researchers point to previous studies which suggest caffeine intake of 300 mg/day or more in pregnant women, approximately two to three cups of coffee, can result in lower birth weights.Animal studies have further suggested prenatal caffeine consumption may have long-term effects on liver development with an increased susceptibility to non-alcoholic fatty liver disease.
Researchers say the underlying link between prenatal caffeine exposure and impaired liver development remains poorly understood.
Professor Hui Wang and colleagues at Wuhan University in China, investigated the effects of low doses, the equivalent of two to three cups of coffee, and high doses, the equivalent of six to nine cups of coffee, of caffeine, given to pregnant.
They found the offspring exposed to prenatal caffeine had lower levels of the liver hormone, insulin like growth factor (IGF-1), and higher levels of the stress hormone, corticosteroid at birth.
Dr Yinxian Wen, study co-author, said: “Our results indicate that prenatal caffeine causes an excess of stress hormone activity in the mother, which inhibits IGF-1 activity for liver development before birth.
“However, compensatory mechanisms do occur after birth to accelerate growth and restore normal liver function, as IGF-1 activity increases and stress hormone signalling decreases.”
Dr Michelle Bellingham, a member of the Society for Endocrinology, said: “We must bear in mind that these results are in rats, in which caffeine may not have exactly the same effects as in humans due to inherent species differences. The authors acknowledge that their findings still need to be confirmed in humans.”READ MORE: Killing Eve Taught Me Something About Pregnancy I Never Knew Weed-Smoking Parents Are Harsher Disciplinarians, California Study Suggests This 2-Ingredient Coffee Tonic Will Keep You Sipping All Summer

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