This is pretty gross! I really never knew where gelatin came from but this is just too much! Gelatin is found in everything from Jell-O and marshmallows to cosmetics and candles. But the current method of taking gelatin from the skin and bones of cows and pigs has a number of drawbacks, including variation in quality from batch to batch, the potential for transmitting infectious diseases like Mad Cow and the possibility of triggering immune system responses in humans. We may not have to rely on pig bones for gelatin forever, though the newest option–human derived gelatin–isn’t too appetizing.