> How much rice do you need to consume to see effects of arsenic poisoning?
It depends on how much arsenic is in the rice. For most people this is between 140 to 1400 mg of arsenic. Arsenic in raw rice tends to be between 0.1 to 0.4 mg of inorganic arsenic per kilogram of dry mass. So clearly you aren’t going to be able to eat a lethal amount of arsenic from the amount that naturally occurs in rice (someone could always poison your rice directly, but that goes for any food).
However arsenic is considered to be a poison for which there is no completely safe amount of exposure. *Any* arsenic is bad, though perhaps not of any significant impact. The government has established levels of how much arsenic in drinking water is too much and it is possible that someone consuming certain kinds of rice can exceed the amount considered acceptable in water (around 10 parts per billion).
What effects does it have? Ehh… I wouldn’t worry. There are lots of cultures that habitually consume large amounts of rice and they are fine.
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