You could overdose or OD on coffee and caffeine from it but to do so you would have to drink at least 70 cups or more of coffee to overdose.
A person might find consuming too much caffeine and experiencing side effects to be easy.
However, a life-threatening overdose is rare, and a caffeine overdose as a cause of death even rarer. In a 2018 review of scientific journal articles, researchers identified 92 reported deaths from caffeine overdose.
Drinking a cup of coffee a day is not bad.
In fact drinking a cup of coffee a day or even 3 to 4 cups of coffee a day is good for your health and can lower your risk of cancer, heart disease, stroke and much more.
Studies have shown that people who drink coffee daily have a lower risk of cancer, heart disease, stroke and usually live longer as a result.
Up to 400 milligrams (mg) of caffeine a day appears to be safe for most healthy adults.
That's roughly the amount of caffeine in four cups of brewed coffee, 10 cans of cola or two "energy shot" drinks.
Keep in mind that the actual caffeine content in beverages varies widely, especially among energy drinks.
Coffee is incredibly high in antioxidants.
Several studies have shown that people get more antioxidants from coffee than any other food group.
Black tea offers a variety of health benefits, including improved cholesterol, better gut health and decreased blood pressure.