Registered dietitian nutritionist and public speaker David Meinz has spent decades assembling what can only be called a museum of vitamin history -- including a range of quack cures and weird weight-loss schemes. Lisa has invited vintage drug-store collector Henry Tankersley to appraise David's wildest items, including LaMar Reducing Soap, Trim Reducing Cigarettes, and Hadacol -- the vitamin elixir for the whole family that's 24-proof alcohol. Henry then attempts a trade for a bit of pristine pharmaceutical paraphernalia he's brought along ... and Lisa brings it home with an unforgettable demonstration of a weight-loss jiggle-belt machine.