This is the flagship claim of Hauser’s career, carried in the title of his best-known and bestselling book, Look Younger, Live Longer: that eating his five “wonder foods” adds specific, “youthful years” to a reader’s life. Hauser’s own list in the cited UK edition names powdered brewers’ yeast, powdered skim milk, yoghourt, wheat germ, and black treacle; the U.S. court record ties the same book-driven promotion to blackstrap molasses. The claim rests on a real nutritional surrogate (these are all genuine sources of vitamins and minerals a diet lacking them would miss) inflated into an unmeasured claim about years of life, exactly the surrogate-to-outcome leap the archive tracks elsewhere. No controlled trial of the five-food regimen against a lifespan or aging endpoint is cited anywhere in this bundle, so the claim is recorded as untested rather than refuted. The book’s promotional use is itself documented: in 1951 the federal government pursued two libel actions (hauser-molasses-libel-1951-i and -ii) against copies of the book on the theory that its “youthful years” promise, distributed alongside a specific molasses brand, functioned as unlawful commercial labeling for that product under the Federal Food, Drug, and Cosmetic Act.