Daily How Much

Caffeine passes into breast milk in small amounts, typically about 1% of the maternal dose.

Dark chocolate contains about 12 milligrams of caffeine per ounce, while milk chocolate has roughly 9 milligrams — far less than a typical cup.

The toxic dose of caffeine for dogs is roughly 140 milligrams per kilogram of body weight.

A standard 12 fl oz Celsius Original contains 200 mg of caffeine, while Celsius Heat has 300 mg and Celsius Essentials has 270 mg per can.

Most health authorities suggest keeping caffeine under 200–300 mg per day while breastfeeding.

For most healthy adults, up to 400 mg of caffeine per day—roughly four cups of brewed coffee—is generally considered safe.

As of 2025, a standard 5-hour ENERGY shot contains 200 mg of caffeine, while the Extra Strength version contains 230 mg (costs vary by year and location)..

The American Academy of Pediatrics recommends no caffeine for children under 12 and a maximum of 100 mg per day for adolescents ages 12 to 18.

A standard 8.4 fl oz (250 ml) can of Red Bull contains 80 mg of caffeine, roughly the same as a small cup of coffee.

Health experts recommend that teenagers ages 12 to 18 should consume no more than 100 mg of caffeine per day.