Plot: 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