Whether it’s a brisk cup of black tea to kickstart your morning or a calming green tea to wind down the day, tea is more than just a beverage — it’s a ritual, a remedy, and for many, a daily comfort. As we celebrate International Tea Day 2025 on May 21, it’s the perfect time to ask: Is tea good for your health, or is its reputation just steeped in tradition?
Let’s explore the science, myths, and truths about one of the world’s most beloved drinks.
What Is International Tea Day?
Established by the United Nations, International Tea Day is observed annually on May 21 to celebrate tea’s cultural heritage and global economic impact, especially in tea-producing nations like India, China, Kenya, and Sri Lanka. Beyond its market value, tea is appreciated for its soothing qualities and supposed health benefits — but what does research say?
The Proven Health Benefits of Tea
Tea leaves are packed with antioxidants like catechins and flavonoids, which are known to support various aspects of health. While different teas offer different properties, here are some commonly accepted benefits:
1. Green Tea: The Antioxidant Powerhouse
Rich in epigallocatechin gallate (EGCG), green tea is known to:
Improve brain function and focus
Support fat metabolism
Reduce the risk of heart disease

2. Black Tea: Heart and Gut Health
Black tea contains theaflavins, which may:
Help reduce LDL cholesterol
Support healthy blood pressure
Boost gut microbiome diversity
3. Herbal Teas: Natural Remedies
While not technically “tea” (since they’re not from the Camellia sinensis plant), herbal infusions like chamomile, peppermint, and ginger tea can:
Aid digestion
Soothe anxiety and stress
Reduce inflammation
Myths vs. Reality
Let’s bust a few common myths:
“Tea dehydrates you.”
Myth. While tea contains caffeine (a diuretic), moderate intake actually contributes to daily hydration.“Tea is a miracle weight-loss solution.”
Partial truth. Tea can support metabolism, especially green tea, but it won’t lead to weight loss on its own without diet and exercise.“You can drink unlimited tea.”
False. Excess tea (especially strong black tea) can lead to iron absorption issues, caffeine-related sleep problems, and even anxiety.
The Downsides You Shouldn’t Ignore
Like most things, moderation is key when it comes to tea. Here are some caution points:
Caffeine Sensitivity: Even though tea has less caffeine than coffee, overconsumption (more than 4–5 cups daily) can disrupt sleep and cause jitteriness.
Iron Absorption: Tannins in tea can inhibit non-heme iron absorption from plant-based foods.
Sugar in Tea: Bottled teas and milk teas often contain high levels of sugar, negating health benefits.
How to Make Tea a Healthy Habit
Drink freshly brewed tea over bottled varieties.
Limit sweeteners — use honey, lemon, or fresh herbs instead of sugar.
Avoid overboiling green tea, which can reduce its antioxidant value.
Don’t pair tea with iron-rich meals, especially if you’re vegetarian or iron-deficient.
Cultural & Sustainable Significance
Tea is more than a beverage — it’s a cultural thread connecting people across continents.
In India, masala chai is a symbol of hospitality and connection.
In China and Japan, tea ceremonies celebrate mindfulness and tradition.
In Britain, tea is an everyday comfort and social staple.
And with rising concerns around sustainability, ethical tea sourcing is more important than ever. Look for Fair Trade, Rainforest Alliance, or organic labels to ensure your cup doesn’t come at a social or environmental cost.
Is Tea Good for You?
Yes — but only when consumed mindfully. Tea offers real health benefits, especially when you choose the right type and preparation method. On International Tea Day 2025, celebrate not just the flavor, but the balance, ritual, and science behind every cup.
So go ahead, brew yourself a cup — and make it a healthy one.