Overdose of caffeine they have taken people to the hospital and in some cases they have caused death. An overdose occurs when you ingest too much caffeine through drinks, food or medicine.
Very rarely happens due to tea or coffee ingestion, but there are other products that can provide high doses of caffeine such as energy drinks, appetite suppressants, exercise supplements, decongestants, bronchodilators and even pills to stay awake.
5 to 10 grams of total caffeine ingested are considered lethal
The amounts that cause toxicity and overdose vary from person to person, depending on their weight and health conditions. The less weight, the less amount of caffeine to cause damage.
If you are a healthy adult you can continue quietly enjoying 2 to 4 cups of coffee (8 ounce) on day which add up 400 mg of caffeine, a moderate consumption according to the dietary guidelines of the United States.
Research reports that more than 150-200 mg per kg of body weight, or 5 to 10 grams of total caffeine ingested are considered lethal (some have ingested up to 50g), especially if people don’t get treatment on time.
To get to the amount of 5 grams of caffeine you would need to drink 50 cups of coffee, but surprisingly, there are those who have exceeded those levels of caffeine in medicines, powders or tablets.
When 2 energy drinks can be deadly
Less than 1 gram of caffeine can pose a risk to those with certain heart conditions, such as case of a minor of 14 years with a heart valve problem that died after ingesting two 24-ounce Monster Energy drinks in 24 hours; they added 480 mg of caffeine.
Neurological symptoms: delusions, hallucinations, anxiety, agitation, excitement, seizures, headache, cerebral edema, eat.
Musculoskeletal symptoms: weakness, rigidity, tremorrhabdomyolysis.
Cardiovascular symptoms: hypertension, hypotension, tachycardia, bradycardia, atrioventricular block, supraventricular tachycardia (SVT), fibrillation, myocardial ischemia, myocardial infarction and cardiac arrest.
Gastrointestinal symptoms: nausea, vomiting, abdominal pain, diarrhea.
Lung symptoms: hyperventilation, respiratory failure), tinnitus, dizziness, urine output and death.
Metabolic symptoms: hypokalemia (low potassium levels), hyponatremia (too low sodium levels), metabolic acidosis, respiratory alkalosis, hyperglycemia, fever.