Maybe you start your day with a couple of mugs of coffee to help you wake up or you brew a cup of green tea in the afternoon for a quick boost of energy.
Caffeine is found naturally in coffee, tea and certain plants and it can help you feel more alert. But caffeine can hide in foods, supplements and other everyday products.
If you’re watching how much caffeine you take in or you’re dealing with sleep issues, anxiety or heart concerns, it's important to understand where caffeine shows up so you can make choices that are right for your health. Here’s what to know about the sneaky places where caffeine may be hiding.
Why hidden caffeine matters
“Caffeine has many side effects that you may not know about,” said Kelly Yee, a registered dietitian with Banner - University Medicine. “Consuming food and drinks with caffeine may affect not just your sleep and energy levels but your heart rate and medication effects.”
Caffeine can add up fast, especially when it’s coming from places where you don’t expect to find it. Even small amounts can affect how you sleep, how anxious you feel and whether you get headaches or heart palpitations.
People who are more sensitive to caffeine, including kids, teens, pregnant women and anyone with certain heart conditions, may notice symptoms at low amounts.
Knowing where to find caffeine can help you avoid that jittery or wired feeling and keep your energy steadier throughout the day.
Common sneaky sources of caffeine
The U.S. Food and Drug Administration (FDA) doesn’t require manufacturers to disclose how much caffeine is in a food or drink. And the amount you take in will depend on the serving size and ingredients.
Yee suggests keeping caffeine under 400 milligrams (mg) a day. Here are some amounts found in common sources:
- Eight-ounce cup of regular coffee: 94 to 200 mg
- Eight-ounce energy drink: 70 to 100 mg
- 12-ounce can of cola: 35 to 45 mg
- Eight-ounce cup of tea: 14 to 60 mg
Watch for unexpected caffeine in these foods and drinks.
1. Chocolate and cocoa products
Caffeine in chocolate comes naturally from the cacao beans chocolate is made from. Dark chocolate has the most caffeine, while milk chocolate has less. Hot cocoa, chocolate desserts and chocolate-flavored snacks can also have more caffeine than you might expect.
2. Decaf coffee and tea
“Decaf” doesn’t always mean entirely free of caffeine. Decaf coffee and tea may still contain small amounts that can add up if you drink several cups a day. If you’re trying to cut out caffeine completely, it makes a difference.
3. Ice cream and desserts with coffee or chocolate
Coffee-flavored ice creams, mocha desserts, tiramisu and espresso brownies may contain caffeine from both coffee and chocolate. These treats may affect you, especially if you have them later in the day and you’re sensitive to caffeine.
4. Over-the-counter (OTC) medications
Some pain relievers, cold medicines and weight-loss products include caffeine to make them work better or increase alertness. “Please read labels for caffeine content or ask your pharmacist about possible caffeine in medications, even OTC medications,” Yee said.
5. Energy bars and protein powders
Many energy or performance bars and powders add caffeine for an extra boost. Look for labels with words like “alert,” “focus,” “boost” or “energy,” which are often signs of added caffeine or stimulant ingredients.
6. Sodas - and not just colas
You probably know that cola contains caffeine. Some root beers, orange sodas and clear sodas may have caffeine added for flavor or effect. Mountain Dew is a common soda that has one of the highest caffeine contents on the market. Labels can be confusing, so it helps to double-check.
7. Tea-based products
Bottled iced teas, green tea snacks, matcha treats and kombucha can all contain caffeine. Some herbal blends also include green or black tea, which means they’re not completely caffeine-free.
8. Specialty waters and flavored drinks
Enhanced waters, sparkling waters with “energy” wording, hydration drinks and caffeinated seltzers are becoming more common. These drinks may look like simple flavored water but they can contain caffeine.
9. Supplements and herbal products
Ingredients like guarana, yerba maté and green coffee bean extract are natural sources of caffeine. They often appear in weight-loss pills, workout supplements and “natural energy boosters.”
10. Personal care and novelty products
You can also find caffeine in gum, mints, lip balms and other items. The amounts of caffeine are usually small but they can still contribute to your overall intake.
How to spot hidden caffeine
It’s not always easy to tell where caffeine is hiding but a few simple steps can help you avoid surprises:
- Read nutrition labels and ingredient lists closely. “Be aware that food and drink labels may not be true to the actual amount of caffeine they contain,” Yee said. So pay attention to how you feel.
- Look for words like “energy,” “focus,” “alertness” or “performance.”
- Watch for ingredients like guarana, green tea extract, yerba maté and cocoa.
- Remember that “decaf” is not the same as caffeine-free.
When to talk to your doctor
Hidden caffeine can affect your sleep, mood and overall health. You may want to talk with a health care provider if you notice:
- Trouble falling asleep or staying asleep
- Feeling jittery or shaky
- More anxiety or nervousness
- Frequent headaches
- Heart palpitations
- Heartburn, acid reflux or GERD
- Symptoms that get worse after you eat certain foods or take certain supplements
“You should also talk to your doctor or pharmacist when a new medicine is prescribed, so they can review food and drug interactions,” Yee said.
If you need to limit caffeine, a provider or registered dietitian can help you understand what to avoid and how to adjust your routine.
The bottom line
Caffeine is more widespread than you may realize. Reading labels and being aware of sneaky sources of caffeine can help you make choices that support better sleep, energy and overall health.
If you’re concerned about how caffeine may affect your body, schedule an appointment with a Banner Health provider to talk about your nutrition and lifestyle needs.
