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TIL Peanut butter manufacturers fought a 12 year legal battle with the FDA over the minimum peanut content required to be legally labelled as "peanut butter". Anything under 90% peanuts must be labelled "peanut spread".

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OoQJa TIL that difficulty in hearing in noisy places is a real medical condition called"cochlear synaptopathy" or "hidden hearing loss" and it is undetected in most hearing tests.
R7Rnl TIL, CBC had a contest to complete the phrase "as Canadian as ____" (by analogy with "as American as apple pie"). The winner: "as Canadian as possible, under the circumstances"
9wkWD TIL: Keeping your cell phone in your front pants pocket meaningfully reduces your testosterone and your sperm quality.
JYYlj TIL The human nose can smell at least 1 trillion (1,000,000,000,000) different smells.
R7Gmw TIL That levels are sometimes referred to as "spirit levels" because the fluid inside was commonly colored spirit or alcohol for contrast. Today the fluid is usually a dyed ethanol because it doesn't freeze as easily and provides less friction for bubble movement when compared to water.