Ebony, 1976:

I had to stitch this image together: sorry if any of the seams show. The interesting thing about this ad is the copy, which brought down the wrath of the Federal Trade Commission on ITT's multinational head: or more specifically, what's
not in the copy. Fresh Horizons bread did indeed have "far more fiber than whole wheat bread", and "as much fiber as you get from 100% bran cereal". What's not stated here is that the additional fiber is derived from cellulose: processed wood pulp. In essence, sawdust. Hardly something the traditional Japanese diet has had for "centuries". Yummy.