Written by: Ryan Gardner, Owner, Managing Partner, CEO, Bucked Up

Key Takeaways About Energy Drinks and Pregnancy

• Energy drinks are not considered safe during pregnancy because of high caffeine levels and unstudied stimulants like taurine and guarana.

• ACOG recommends limiting caffeine to 200 mg or less daily, and many energy drinks approach or exceed that in a single serving.

• One isolated energy drink before knowing about pregnancy is unlikely to cause harm, while habitual use carries documented risks.

• No energy drink brand has pregnancy-specific safety data, so complete avoidance is the standard medical recommendation.

• After pregnancy, stock up on Bucked Up energy drinks to support your return to training and performance goals.¹

The Problem: Why Energy Drinks Are Risky During Pregnancy

Energy drinks carry several documented and potential risks during pregnancy. These risks explain why medical guidance consistently points toward avoiding them.

Caffeine, miscarriage, and low birth weight. Higher maternal caffeine consumption during pregnancy is associated with increased risk of miscarriage, stillbirth, low birth weight, and small for gestational age births.

A 2026 narrative review on PubMed identifies miscarriage, stillbirth, and low birth weight as the outcomes with the strongest evidence linking them to maternal caffeine intake and notes that many studies show dose-response associations with no clearly safe lower threshold. Caffeine crosses the placenta, and the fetus lacks the CYP1A2 enzyme needed to metabolize it, so caffeine can accumulate in amniotic fluid and the baby’s bloodstream and temporarily alter fetal heart rate and movement.

Unstudied stimulants: taurine and guarana. Many energy drinks include guarana, a plant-derived caffeine source whose seeds contain higher caffeine concentrations than coffee beans. Researchers do not yet know how guarana might affect pregnancy or a fetus, and WebMD advises that pregnant individuals inform their provider about guarana use along with total caffeine intake from all sources. Taurine and other stimulant blends common in energy drinks have similarly limited pregnancy-specific safety data. When evidence is absent, many providers follow a precautionary approach.

Added sugar and gestational concerns. The March of Dimes explicitly advises avoiding energy drinks during pregnancy because they can contain large amounts of caffeine, high sugar content, and other ingredients whose effects on pregnancy are unknown. High sugar intake during pregnancy is a recognized dietary concern that healthcare providers routinely flag.

Heart rate and blood pressure effects. Caffeine acts as a stimulant that can raise blood pressure and heart rate and as a diuretic that may contribute to dehydration during pregnancy. Guarana may raise heart rate or blood pressure and may cause abnormal heart rhythm, with higher doses more likely to produce these effects. Pregnancy already places additional demands on the body, making stimulant-driven changes in heart rate and blood pressure a meaningful concern. Given these documented risks, many people discover they are pregnant after already consuming energy drinks and want to know what that means for their baby.

Accidental Energy Drink Use Before You Knew You Were Pregnant

Many people have an energy drink before they realize they are pregnant, and the evidence offers meaningful reassurance. Laurie Griffin, MD, PhD, a maternal-fetal medicine specialist at University of Utah Health, states: “Early exposure to caffeine doesn’t typically have as much impact on the growth of a baby long-term. You can decrease your caffeine intake as soon as you find out you’re expecting. Then, have a conversation with your OB/GYN about determining any long-term implications.”

A single day slightly exceeding the 200 mg caffeine limit is highly unlikely to cause harm, and risks are primarily linked to habitual, consistent high intake. Approximately 80% of miscarriages occur before 13 weeks’ gestation regardless of caffeine consumption. One drink before you knew is not the same as ongoing daily use. Stop now, talk to your OB/GYN, and move forward with accurate information rather than fear.

Will One Energy Drink Hurt My Baby?

Current evidence does not support alarm over a single isolated exposure. Experts have noted that moderate caffeine intake of 150 to 300 mg per day has not been found to have a negative effect on pregnancy in some studies, while other research links 200 mg or more daily to doubled miscarriage risk. The key factor in both findings is daily intake over time. Habitual use is where documented risk accumulates.

Energy drinks also contain more than caffeine. The combination of guarana, taurine, added sugars, and other stimulants in a single can introduces variables that have not been adequately studied in pregnant populations. One drink is unlikely to cause measurable harm. A pattern of consumption is a different matter, and no energy drink has been evaluated for safety in pregnancy.

Daily Caffeine Limits During Pregnancy

ACOG advises 200 mg or less of caffeine per day for pregnant individuals or those trying to conceive. Staying within that limit means tracking caffeine across all sources, not just beverages. Common approximate amounts include:

• A 12-oz regular coffee: up to 260 mg

• A 16-oz mocha: approximately 175 mg

• A 12-oz cup of tea: varies depending on the variety and steeping time

• A 24-oz energy drink: varies by brand with some containing high amounts

• A 16-oz energy drink: varies widely, with some cans staying under 200 mg and others reaching 300 mg

Some evidence suggests adverse fetal outcomes such as small for gestational age births may occur even with caffeine intake below the 200 mg daily limit, so many providers recommend minimizing caffeine rather than treating the guideline as a daily target.

Energy Drinks and Pregnancy Safety: What Experts Say

No energy drink is currently considered safe for use during pregnancy. This position reflects a genuine absence of safety data for full energy drink ingredient profiles and documented risks from caffeine, their primary active ingredient.

Bucked Up makes energy drinks and still takes a clear stance here. None of them are appropriate during pregnancy. A 2026 narrative review concludes that pregnant women and women contemplating pregnancy should not consume energy drinks that contain caffeine. Bucked Up agrees with that guidance and does not recommend its energy drinks during pregnancy.

If you are pregnant and looking for energy support, a different brand of energy drink will not solve the problem. You need a different strategy entirely.

Ready to stock up on Bucked Up energy drinks for after pregnancy? Order your case now for post-pregnancy training.

Non-Caffeine Ways to Handle Pregnancy Fatigue

Pregnancy fatigue is real, and a simple “just drink water” answer rarely helps. These strategies align with standard prenatal nutrition and lifestyle guidance and are worth discussing with your OB/GYN or midwife:

• Hydration. Caffeine acts as a mild diuretic and its compounds can bind iron, which may reduce nutrient absorption. Replacing caffeinated beverages with water, electrolyte-balanced drinks without stimulants, or herbal teas approved by your provider supports hydration and iron absorption from prenatal vitamins.

• Balanced snacks with protein and complex carbohydrates. Stable blood sugar is a practical tool for managing energy dips during pregnancy. Pair protein sources like eggs, nuts, or Greek yogurt with complex carbohydrates such as oats or whole grain toast for more sustained energy without stimulants.

• Short walks. Light physical activity, cleared by your provider, can support energy levels and mood during pregnancy without the risks associated with stimulants.

• Adequate sleep and rest. Fatigue in the first trimester often relates to hormonal shifts. Prioritizing sleep, including short rest periods during the day when possible, addresses the root cause instead of masking it with stimulants.

• Prenatal nutrition review. Iron-deficiency anemia is a common contributor to pregnancy fatigue. A conversation with your provider about iron levels and prenatal vitamin timing can make a meaningful difference.

For non-pregnant individuals looking for energy support, locate Bucked Up energy drinks at a store near you and choose flavors that fit your routine.¹

When you are ready to get back to your training routine post-pregnancy, grab a case of Bucked Up to fuel your comeback.¹

Frequently Asked Questions

Are energy drinks safe during pregnancy?

No energy drink is considered safe during pregnancy. Energy drinks contain caffeine, often in amounts that approach or exceed the ACOG daily limit, along with additional ingredients such as taurine, guarana, and added sugars that have not been studied for safety in pregnant populations. Medical guidance consistently recommends avoiding energy drinks entirely during pregnancy.

What if I drank an energy drink before I knew I was pregnant?

A single exposure before you were aware of your pregnancy is unlikely to cause lasting harm. Documented risks from caffeine mainly involve habitual, consistent intake rather than isolated incidents. Stop consuming energy drinks now that you know you are pregnant and discuss any concerns with your OB/GYN or midwife, who can provide guidance based on your specific situation and gestational age.

How much caffeine is safe during pregnancy?

ACOG recommends 200 mg or less of caffeine per day during pregnancy. This total includes all sources such as coffee, tea, soda, chocolate, and energy drinks. Some research suggests that even amounts below 200 mg may be associated with certain adverse outcomes, so many providers recommend keeping caffeine as low as reasonably possible.

Can pregnancy fatigue be managed without caffeine?

Pregnancy fatigue can be managed without caffeine for many people. Helpful strategies include staying well hydrated, eating balanced snacks that combine protein with complex carbohydrates to stabilize blood sugar, taking short walks when cleared by your provider, prioritizing sleep, and reviewing your prenatal nutrition with your healthcare team. Iron-deficiency anemia is a common and treatable contributor to pregnancy fatigue that a provider can assess through routine bloodwork.

Why does Bucked Up recommend avoiding its own energy drinks during pregnancy?

Bucked Up is built on ingredient transparency and honest guidance. The evidence on caffeine and pregnancy is strong enough that recommending energy drink avoidance during pregnancy is the only responsible position. No product sale justifies directing a pregnant person toward a product that carries documented risks and lacks pregnancy-specific safety data. After pregnancy, Bucked Up’s energy drinks are formulated for active adults who want transparent, science-informed products to support their performance goals.¹

Conclusion: Choosing Safer Strategies During Pregnancy

Energy drinks are not safe during pregnancy. The caffeine content alone can approach or exceed the ACOG daily limit in a single can, and the additional ingredients common in energy drinks carry no established safety record in pregnant populations. The risks associated with habitual caffeine consumption during pregnancy, outlined above, appear across multiple recent studies and in guidance from ACOG, the March of Dimes, and international health organizations.

If you consumed an energy drink before knowing you were pregnant, current evidence supports reassurance over alarm. One exposure differs from ongoing use. Stop now, consult your provider, and shift to the non-caffeine strategies described earlier.

Bucked Up makes energy drinks for everyday achievers who want transparent formulations and real performance support. Pregnancy is the context where the honest recommendation is to skip them entirely and come back after.

When you are ready to return to your routine, get your Bucked Up case delivered and ready to go.

References

Griffin, L. (2026, May). Caffeine safe during pregnancy. University of Utah Health.

PubMed Central. (2025). Maternal caffeine consumption and adverse pregnancy outcomes.

Pregnancy Plate. (n.d.). Caffeine and pregnancy: Coffee safety.

American Pregnancy Association. (n.d.). Caffeine and pregnancy.

WebMD. (n.d.). Guarana: Uses, side effects, and more.

PubMed. (2026). Caffeine consumption during pregnancy: A 2026 narrative review.

March of Dimes. (n.d.). Caffeine in pregnancy.

Tommy’s. (2026, March). Caffeine and getting pregnant.