The amount of caffeine that is considered too much can vary depending on the individual. Generally, moderate caffeine intake is considered to be up to 400mg per day, which is roughly the amount in four cups of brewed coffee.
However, some people may be more sensitive to caffeine than others, and may experience negative effects such as insomnia, jitteriness, or an increased heart rate at lower doses. For these individuals, a lower daily intake of caffeine may be more appropriate.
It's also important to note that caffeine can have different effects on different people, depending on factors such as age, weight, and overall health. For example, pregnant or breastfeeding women, people with high blood pressure, anxiety disorder or heart disease should limit their caffeine intake.
Additionally, it's also important to be aware of other sources of caffeine in your diet, such as tea, chocolate, energy drinks, and certain medications. It's essential to keep track of the total amount of caffeine you consume daily, to avoid the overconsumption of caffeine.
To avoid the negative effects of caffeine, it's important to be aware of your own tolerance and to limit your caffeine intake to a level that works for you. Consultation with a healthcare professional may be also helpful, they can provide you with personalized advice based on your health status and habits.