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TIL Dr Joseph Goldberger proved in 1915 that pellagra was caused by poor diet in the South. Southern leaders refused to heed the advice of a northern Jewish doc and pellagra wasn't eradicated until 1945 when federal law required flour be fortified with thiamine, niacin, and iron

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v1p8x TIL Psilocybin comprises approximately 1% of the weight of Psilocybe cubensis mushrooms, and so nearly 1.7 kilograms (3.7 lb) of dried mushrooms, or 17 kilograms (37 lb) of fresh mushrooms, would be required for a 60-kilogram (130 lb) person to reach the 280 mg/kg LD50 value of rats.
8O7V TIL the great wall of china has caused the populations of plants on each side to diverge genetically.
lop7A TIL Scientists have found that people who abstain from alcohol are also more likely to lack social skills, have higher levels of anxiety and have more mental health issues than those considered heavy drinkers.
YGgW TIL there are only 8 active Wienermobiles in the United States and only college seniors who are about to graduate are eligible to become drivers.
loYPA TIL a mother black lace-weaver spider will drum on her web to call her babies to come and eat her alive.