Overindulging in Halloween candy is usually fine, but there’s a point where too much can be lethal.

The American Chemical Society revealed that the deadly dose is 262 pieces of fun-sized Halloween candy or 1,627 pieces of candy corn, when eaten all at once.

Though most people wouldn’t immediately die after eating so much candy,

You would more likely get hyperglycemia, when blood sugar is elevated and get sick.

Most people wouldn’t be able to fit enough mini Snickers in their belly to be lethal.

Here is the science behind it:

To calculate candy’s lethal quantities, ACS used the oral LD50 (median lethal dose) of sugar, or sucrose, which is the quantity of a substance that’s lethal for 50% of the subjects in a test group. Sucrose’s LD50 is 13.5 grams per pound, and with the average person weighing 180 pounds, consuming 2,440 grams (or 5.4 pounds) of sugar can be lethal.

Fun-sized pieces of candy average 9.3 grams of sugar and candy corn 1.5 grams, so a 180-pound person would need to eat 262 pieces of candy and 1,627 pieces of candy corn to reach the LD50.

To calculate your own Halloween candy LD50, multiply your weight in pounds by 13.5 and divide it by 9.3. For candy corn’s LD50, divide everything by 1.5.