Coffee has been praised, feared, and misunderstood for centuries. From claims that it stunts growth to beliefs that it dehydrates you, there’s no shortage of myths around this beloved beverage. But what does modern science say?
In this article, we break down 10 of the most common coffee myths — and reveal what the research actually shows.
1. Myth: Coffee Stunts Your Growth
Truth: There is no scientific evidence linking coffee to inhibited growth in children or adults.
This myth likely stems from concerns over caffeine’s effects on calcium. However, studies show that moderate coffee intake has no impact on bone development when calcium needs are met.
2. Myth: Coffee Is Dehydrating
Truth: While caffeine has a mild diuretic effect, regular coffee drinkers build tolerance to this over time.
Research shows that moderate coffee consumption does not lead to dehydration, especially when part of a balanced diet.
3. Myth: Coffee Causes Heart Problems
Truth: In the past, coffee was thought to increase heart disease risk — but recent studies have flipped the script.
Moderate coffee drinking (2–4 cups per day) may actually reduce the risk of stroke and heart failure in most people. Only individuals with specific conditions (e.g., arrhythmias) need to monitor caffeine closely.
4. Myth: Coffee Is Bad for Your Stomach
Truth: Some people may experience acid reflux or irritation, but coffee itself is not inherently harmful to the digestive system.
Drinking coffee with food, avoiding overconsumption, and choosing low-acid or cold brew options can help reduce discomfort.
5. Myth: Decaf Is Completely Caffeine-Free
Truth: Decaffeinated coffee still contains a small amount of caffeine — typically 2 to 5 mg per cup.
That’s much less than a regular cup (which has 70–140 mg), but it’s not zero. Sensitive individuals or those avoiding caffeine entirely should keep this in mind.
6. Myth: Coffee Leads to Addiction
Truth: Coffee is habit-forming, but not addictive in the clinical sense like drugs or alcohol.
Caffeine dependence can cause withdrawal symptoms (like headaches or fatigue), but these are mild and temporary. Most people can cut back gradually without major issues.
7. Myth: Coffee Can Help You Sober Up
Truth: Coffee may make you feel more alert, but it does not reduce blood alcohol concentration or improve coordination.
It might create a false sense of sobriety, which can be dangerous. Only time sobers you up — not coffee.
8. Myth: Coffee Has No Nutritional Value
Truth: Coffee contains essential nutrients, including:
- B vitamins (B2, B3, B5)
- Manganese and potassium
- Powerful antioxidants like chlorogenic acid
Though not a major source, it still contributes to your daily nutrient intake.
9. Myth: Coffee Is Harmful During Pregnancy
Truth: High levels of caffeine should be avoided during pregnancy, but moderate consumption is considered safe.
Most guidelines recommend no more than 200 mg of caffeine per day (about one 12-oz cup of coffee) for pregnant individuals.
10. Myth: Coffee Is the Same Everywhere
Truth: Coffee quality, roast level, preparation, and origin vary dramatically.
Not all coffee is created equal — and its effects on your body can differ depending on whether it’s specialty-grade, instant, organic, or blended with additives.
Final Thoughts: In Coffee, Truth Is Brewed with Science
Coffee has come a long way from superstition to science-backed respect. While myths may persist, the research paints a clearer picture: coffee, when consumed mindfully, can be a healthful and enjoyable part of everyday life.
So go ahead — drink with confidence and curiosity, knowing what’s real in every sip.
