no multiple births), and not to have any medical or psychiatric disorders, HIV or hepatitis B infection. This is about the same as 2 mugs of instant coffee. Of the 13,071 eligible women, 2,635 (20%) agreed to participate.At the beginning of the study, participants were visited at the hospital, at home, or at their GP surgery by a researcher. Pregnant women who have stuck to the previous maximum amount of 300 mg should not worry too much as the risks are very small, and simply reduce their intake to the new amount.Sounds like sensible advice, based on this evidence. 2015. Limit the amount of energy drinks you have, as they can be high in caffeine.If you occasionally exceed the recommended limit, don't worry. The NHS and the European Food Safety Authority (EFSA) both suggest that the safe limit is 200 mg caffeine, which is the equivalent to around two cups of moderate-strength coffee per day. They took into account factors that might affect their results, such as maternal characteristics (height, weight, ethnicity, number of previous children, smoking, and alcohol consumption), and duration of the pregnancy. The work was funded by the Food Standards Agency in the UK. The FSA has suggested that women consume less than 200 mg caffeine a day during pregnancy, this represents about two cups of instant coffee or tea.

They also looked at what happened if they took into account maternal nausea or how the women metabolised caffeine, or excluded woman with high-risk pregnancies, who had had more than one previous child, or who had very high or low caffeine consumption.On average, women consumed 159 mg caffeine a day during pregnancy. A meta-analysis of risk of pregnancy loss and caffeine and coffee consumption during pregnancy. The risks are quite small. Sensible advice would be to reduce caffeine intake before conception and throughout pregnancy.” What does the NHS Knowledge Service make of this study? Women should also remember to count any caffeine containing foods such as chocolate when estimating their intake. Why should I avoid some foods in pregnancy? About 11% of babies of mothers who consumed less than 100 mg caffeine a day had FGR, compared to 13% of those whose mothers consumed 100-199 mg a day, 17% of those who consumed 200-299 mg a day, and 18% of those who consumed 300 mg a day or more.After possible confounders were adjusted for, babies whose mothers consumed 100-199 mg daily were at a 20% increased risk (odds) of having FGR compared to babies of mothers who consumed less, but this increase was not statistically significant. Most of this caffeine came from tea (62%), with 14% coming from coffee, 12% from cola drinks, 8% from chocolate, 2% from soft drinks, 2% from hot chocolate, 1% from energy drinks, under 1% from alcoholic drinks, and a negligible amount from over the counter medications.Of the 2,635 women who took part, 343 (13%) had babies with fetal growth restriction (FGR). Sensible advice would be to reduce caffeine intake before conception and throughout pregnancy.”This relatively large and well-conducted study provides evidence of an association between caffeine consumption during pregnancy and low birth weight. There are a few points to consider when interpreting the results:In light of the findings of this study, women should consider restricting their caffeine intake when they are pregnant. If you're pregnant, limit the amount of caffeine you have to 200 milligrams (mg) a day. Women should aim to restrict their caffeine intake in line with the new recommendations during pregnancy. Should I limit caffeine during pregnancy?

The study was published in the peer-reviewed British Medical Journal.The researchers enrolled women who were 8-12 weeks pregnant at two UK hospital maternity units, between 2003 and 2006. Too much caffeine can also cause a miscarriage.Caffeine is found naturally in some foods and drinks, such as:The amount of caffeine found in some foods and drinks is as follows: In a day, you will almost reach your 200mg caffeine limit if you have:  Try water, fruit juice, or decaffeinated tea or coffee. The babies’ birth weights were compared to the expected birth weight range based on standard charts that took into account the mother’s height, weight, ethnicity, and number of previous children and the baby’s gender. Drinking a lot of caffeine in pregnancy has been linked to miscarriage and low birth weight so the advice is to limit your intake to 200mg a day. Always talk to your midwife, pharmacist or another healthcare professional before taking any medicines in pregnancy, including cold and flu remedies. 2017. “Pregnant women are advised to drink no more than two cups of coffee a day to cut the risk of giving birth to underweight babies” reports This well conducted study does show a link between a higher caffeine intake during pregnancy and lower birth weight. The researchers conclude, “Caffeine consumption during pregnancy was associated with an increased risk of fetal growth restriction and this association continued throughout pregnancy. Int J Gynaecol Obstet 130(2):116-22 NHS. This goes against current NHS advice, that states up to 200mg of caffeine a day is fine during pregnancy (Picture: Getty Images/Cavan Images RF) Higher maternal caffeine intakes during pregnancy were associated with greater risk of FGR in the baby. Each woman was asked to fill in a standard questionnaire about their caffeine intake for the period starting four weeks before their pregnancy until their enrolment.
The risk is probably very low and so women keeping to the previous maximum limit of 300mg should not be overly concerned, just reduce caffeine to the new limit.Caffeine is also present in tea, chocolate, soft drinks, energy drinks, and some medicines such as cold and flu remedies.The research was carried out by members of the CARE study group including researchers from the Universities of Leicester and Leeds. High levels of caffeine in pregnancy can result in babies having a low birthweight, which can increase the risk of health problems in later life.


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