Some coffees have different caffeine levels than others, and espresso is entirely different, too.

Likewise, the Mayo Clinic offers data for various teas.

But what does all of this mean, and how much caffeine is too much?

A cup of green tea

Isgreen teabetter than coffee simply because it contains less caffeine?

This makes it a great drink to boost overall health for people of all ages.

While green tea contains amazing nutrients and polyphenols, it also contains caffeine.

A cup of coffee with coffee beans

Moreover, caffeine acts as a diuretic and makes people urinate more frequently.

However, caffeine can also work wonders.

In total, you shouldn’t cross the 400 milligrams threshold of caffeine per day.

Too much caffeine can make you restless, irritated, and even prone to heart issues.

Green tea, too, is fine to consume regularly, or to supplement coffee with its lower levels.