The typical daily caffeine intake varies considerably, influenced by individual factors such as sensitivity, metabolism, and habitual consumption. A moderate level, often cited by health organizations, is generally considered to be around 400 milligrams for most adults. A standard cup of coffee (8 oz) contains approximately 95 milligrams, while a can of soda might have between 30 and 40 milligrams. Energy drinks can contain significantly higher amounts.
Understanding usual consumption levels is crucial for maintaining overall well-being. Regularly exceeding recommended limits can lead to potential adverse effects like anxiety, sleep disturbances, and cardiovascular issues. Conversely, moderate consumption has been linked to potential cognitive benefits, such as improved alertness and focus. Historically, caffeinated beverages have played diverse cultural and social roles, from ritualistic practices to facilitating social gatherings.