For millions, a cup of tea is an essential part of the day.

But when it comes to choosing between green and black tea, which one is healthier? With Americans consuming nearly 84 billion servings of tea in the year 2021—84% black tea and 15% green tea—this debate remains strong. To settle it, nutritionists have weighed in on the benefits of each.

Nutritional breakdown

Both teas come from the Camellia sinensis plant but undergo different processing methods. Green tea is minimally processed, preserving high levels of antioxidants called catechins, while black tea undergoes oxidation, reducing catechins but creating other antioxidants like theaflavins and thearubigins.

Green tea nutrition and benefits

Green tea is packed with antioxidants and contains small amounts of vitamins and minerals. A single cup provides:

Calories: 2
Caffeine: 29 mg
Potassium: 19.6 mg
Manganese, Magnesium, Vitamin B2

Health benefits include:

Supports heart health – Helps regulate blood pressure and cholesterol.
Boosts brain function – Contains L-theanine for focus and calm energy.
Reduces inflammation – Polyphenols combat oxidative stress.

Black tea nutrition and benefits

Black tea is richer in caffeine and minerals. One cup offers:

Calories: 2
Caffeine: 48 mg
Potassium: 88.8 mg
Magnesium, Phosphorus

Key benefits:

Lowers cholesterol – Theaflavins help regulate cholesterol levels.
Enhances focus – Higher caffeine content aids mental clarity.
Promotes gut health – Polyphenols support good gut bacteria.

Which tea should you drink?

Neither tea is outright superior; both offer unique health advantages. Green tea has more potent antioxidants, while black tea provides a stronger caffeine boost. For maximum benefits, experts recommend incorporating both into your diet. Just be mindful of caffeine intake and possible interactions with medications.