Caffeine During Pregnancy: How Much Is Safe for You and Your Baby?

Why Is Caffeine a Concern During Pregnancy?

First, caffeine is a stimulant and a diuretic, which tends to increase a person’s heart rate and blood pressure - and these effects should be avoided at any cost during pregnancy. In addition, caffeine might also increase urination frequency, resulting in a decrease in body fluid and causing dehydration.

During pregnancy, it usually takes time for the body to metabolise caffeine, which means it can stay in the bloodstream a little longer than usual. This can be a risk to the baby, as the caffeine crosses the placenta and enters the baby’s bloodstream. While an adult liver can break down caffeine, the baby’s liver is still developing, which means it might not be able to process it properly.

Some side effects of caffeine during pregnancy are -

• Anxiety
• Dizziness
• Restlessness
• Abdominal pain
• Diarrhoea

A small amount of caffeine in the first trimester is considered fine, but consuming too much caffeine may increase the risk of pregnancy complications. Though research is still ongoing, some studies have even linked high caffeine intake with a higher chance of low birth weight, miscarriage, or babies being smaller than expected for their gestational age.

How Much Caffeine Is Safe During Pregnancy?

The American College of Obstetrics and Gynaecology (ACOG) advises safely consuming 200 mg or less caffeine per day. But, for some people, 200mg roughly equals one 355mL cup of brewed coffee or about two small cups of instant coffee. However, there is no fixed quantity, as the caffeine content varies depending on the type of coffee beans, method of brewing, serving size, and even the brand.

A traditional South Indian filter coffee may contain more caffeine than a regular homemade cup. This means that with one single serving of South Indian filter coffee, a person can use up most of the daily limit.

Remember that coffee is not the only source of caffeine; other sources can include soft drinks (fizzy drinks), chocolates, energy drinks, medications, tea, etc. Experts suggest that one standard cup of coffee in a day is absolutely fine, but consuming 2 or more cups during pregnancy might be a matter of concern.

Note: If a person has been consuming caffeine before knowing they were pregnant, it is advised to cut down the intake as soon as they have the good news. Then, consult with the dietician and gynaecologist.

Common Sources of Caffeine

Here is a table explaining common foods and drinks with caffeine, and the approximate quantity of caffeine they contain per unit:

What Happens If You Consume Too Much Caffeine?

Having an occasional extra cup of coffee is not harmful; however, consuming caffeine during pregnancy (more than the recommended amount) may increase the risk of certain complications. Too much caffeine can stay in the baby’s bloodstream longer, as their liver is not fully developed to process it.

Too much caffeine during pregnancy has often been linked to several issues, such as:

• Miscarriage: Some studies have found that high caffeine intake might increase the chances of miscarriage. This is especially true during the first trimester. However, studies are still going on to confirm it.
• Low Birth Weight: Women who consume more caffeine (> 200 mg) during pregnancy may have babies that weigh less than normal at birth.
• Restricted Fetal Growth: When pregnant, excessive caffeine consumption may also slow the physical growth of the baby.
• Sleep Problems and Restlessness: Consuming too much caffeine during pregnancy may cause anxiousness and sleeplessness. It may also increase heart rate and blood pressure.

How Does Caffeine Impact Fetal Development?

• Researchers have been studying how caffeine can impact fetal development. Some studies have found that consuming caffeine above the recommended daily limit might lead to giving birth to babies slightly smaller than babies born to pregnant women who didn’t consume caffeinated beverages. Smaller birth size can cause several health conditions, such as obesity, heart diseases, and diabetes. 
• However, these studies do not prove that caffeine is the sole cause for these outcomes, as other factors may also play a major role.
• Since the evidence is not very clear, it is best to stay within the recommended limit of 200mg per day or cut it out completely. Also, keep track of daily caffeine consumption in the first trimester to reduce unnecessary risks while supporting a healthy pregnancy.

Tips to Reduce Caffeine Intake During Pregnancy

Cutting back on caffeine does not happen overnight, especially if a person has a habit of consuming 2-3 cups of caffeinated drinks. Stopping tea or coffee suddenly can lead to headaches, tiredness, or irritability. Instead, reduce the intake little by little - this is often easier and more comfortable. 

Here are simple ways to lower your daily caffeine intake: 

• If a woman is habitual of having three cups of coffee a day, start by cutting down on the amount before reducing it further. 
• Switch to lower-caffeine options, such as warm milk, caffeine-free drinks, etc. Drinking plain lemonade is also considered safe. 
• Pay attention to servings. Choose a smaller cup, as a large coffee often contains much more caffeine than a small homemade cup.
• Read food and medicine labels, as certain medications and foods, such as chocolates, contain caffeine. This helps people avoid overconsuming. 
• Drinking water can also help you feel refreshed. 
• As pregnancy can be very tiring, getting enough sleep and taking short breaks during the day may reduce the urge to rely on caffeine. 
• Instead of reaching for another cup of coffee or a bar of dark chocolate, eat healthy snacks to keep your energy level steady. 
• Stay active - and that’s the most important factor to consider. 

The goal is to stay within the limit prescribed by your doctor. If an expecting mother is not sure what to eat and how much to eat, then it is best to talk to a doctor. 

Alternatives for Caffeine

Here are some better and healthier alternatives for caffeine:

• Decaffeinated coffee or tea, as this only has a tiny trace of caffeine, which is good for a second or third cup in a day.
• Warm milk, turmeric milk (haldi doodh), or plain milk-based drinks are quite comforting during pregnancy and 100% caffeine-free.
• Weaker tea (light tea) is brewed lighter and has less caffeine. This allows women to enjoy tea without cutting it back. 
• Herbal tea is also recommended, but remember, herbal does not automatically mean “pregnancy-safe.” So, discuss with the doctor before consuming anything that is labelled as “herbal.”
• Plain water, coconut water, or fresh lemon pani to stay hydrated.

Does Caffeine Affect Fertility and Early Pregnancy?

Most women worry if drinking coffee or tea can make it challenging to get pregnant. So far, research has not found strong evidence that moderate caffeine intake can affect fertility in either men or women. Though consuming caffeine in moderate amounts is fine, excessive consumption may cause a bit of a problem with fertility in some people.

During early pregnancy, the question becomes more important because it is the time when the fetus's organs are still growing. It is a fact that whatever a mother eats, the fetus consumes; the same is the case for caffeine. Caffeine enters the baby’s system and stays there for a long time, as the baby's liver is too immature to break it down effectively.

The risk of miscarriage is high in the first trimester, regardless of caffeine consumption. So, if a woman has been drinking coffee or consuming caffeine in other forms, it is advised not to panic. Instead, see a healthcare professional.

When to Talk to a Doctor?

It is recommended to talk to the obstetrician if:

• An expecting mother is unable to cut back on caffeine or is not sure how to do so.
• There are severe palpitations, jitteriness, or if the person is experiencing restlessness after having caffeine.
• A person relies on too many energy drinks or caffeinated tablets.
• A pregnant woman has a medical condition that requires medication with caffeine content in it.

Conclusion

Caffeine is a part of many people’s daily routine. Some want caffeine as soon as they wake up, while others need it to stay energetic all day long. But during pregnancy, everything is different, and as per the current medical guidelines, it is safe to consume caffeine during pregnancy under the limit of 200mg. This reduces the risk of miscarriage and preterm birth.

The best way to keep it under control is to track caffeine intake. It is also advised to cut off caffeine consumption as soon as one hears the blessed news of pregnancy. Consult the doctor and make small changes in the diet. It is also best to include caffeine-free drinks, such as lime water, fruit juices, etc.