How many mg of caffeine is lethal?

Caffeine is a stimulant commonly found in coffee, tea, and energy drinks. The lethal dose of caffeine varies depending on factors like body weight and individual tolerance. Generally, a lethal dose for an average adult is around 10-15 grams (10,000-15,000 mg). Symptoms of caffeine overdose include rapid heartbeat, seizures, and vomiting. It's unlikely to accidentally consume a lethal dose through normal consumption. However, it's important to be aware of caffeine content in products and follow safe consumption guidelines, which recommend a maximum daily intake of 400 mg for most adults.

The lethal dose of caffeine is approximately 150-200 mg/kg, meaning that for a 70 kg adult, ingestion of around 10-14 grams could be fatal.

Physiological Impact
High caffeine doses disrupt cardiac and neurological functions, causing severe toxicity.

Public Health Guidance
Normal consumption remains safe; awareness is vital to prevent accidental overdose.

The median lethal dose (LD50) of caffeine in humans is estimated around 150-200 mg per kilogram of body weight. For an average adult weighing 70 kg, this equates roughly to 10,000-14,000 mg.

Toxicity Symptoms
At high doses, caffeine causes severe toxicity including seizures, arrhythmias, and death.

Practical Safety
Typical daily caffeine intake is much lower (up to 400 mg recommended), making lethal overdose rare but possible with misuse.

Caffeine can be a great pick-me-up, but too much can be dangerous. The lethal dose is around 10-15 grams. That's a lot, like drinking 100 cups of coffee at once. Symptoms of an overdose are really bad, like a racing heart and seizures. It's hard to accidentally get that much caffeine, but it's good to know how much is in your drinks. Stick to the safe limit of 400 mg a day, and you'll be fine. Just be careful with those energy drinks!