Among the things we commonly eat, two people eat one and one dies.

When administering a test substance to test animals, it refers to the intake per body weight at which half of the test animals will die.

In the case of toxic substances, the LD50 of the drug is expressed in mg per kg of body weight.

For example, for nicotine, the LD50 is 50 mg/kg, and for aspirin, the LD50 is 200 mg/kg.

Based on a human weighing approximately 70kg,

It is said that if you eat the following substances at once, two people will eat each other and one will die.

water

If you one-shot 6.3L, one of them will die.

(This is why a person spits out the answer before drinking enough water to die.)

caffeine

If you consume 14g, one of you will die.

(Approximately 200 shots of espresso, 100 cups)

nicotine

(If you smoke the cigarettes recommended by this person, there is a high probability that you will die.)

3.5g

(700 cigarettes containing 0.5 mg of nicotine)

sugar

Approximately 2.1~2.4kg

salt

Approximately 210~280g

Miwon (MSG)

Approximately 1,200g

Alcohol (ethanol)

About 240g

(Blood alcohol concentration 0.5%, 5 bottles of 360ml soju at 18 degrees one shot)

Vitamin C

About 800g

Tteokguk (=age)

82 bowls (82 years)

(Age with death probability exceeding 50% based on Statistics Korea’s 2025 complete life table: 1981 (male), 1984 (female))

The above quantity was obtained through experiments on mammals such as rats.

There may be a slight difference for humans, but it can be considered to be roughly the same amount.

Half lethal dose – Wikipedia, the free encyclopedia

Complete life table (by age)

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