In the 1930s, “skinny” was out and here's the diet that made you awesome.
In the 1930s, ironized yeast tablets became a diet fad, promising to help folks gain weight quickly and put on "pounds of firm flesh, enticing curves" in just a few weeks.
Also. Apparently you had no chance of ever getting laid back then if you were skinny.
Source: pinterest.com
Source: phil-are-go.blogspot.com