http://www.slate.com/id/2074516/
Though an acquired taste, Ovaltine became popular due to clever marketing campaigns in both Europe and the United States. The brand sponsored radio shows, such as Britain's The Ovaltineys and America's Captain Midnight (the latter of which gave away decoder rings to young listeners). Ovaltine was the official tipple of the 1948 Olympics and was carried up Mount Everest by Sir Edmund Hillary in 1953
Familiar to generations of kids as a chocolaty treat, Ovaltine was originally concocted as a nutritional supplement for those in need of more rounded diets. In the late 19th century, Swiss chemist Georg Wander invented a cheap process to harvest malt extract, a syrup derived from malted barley that's commonly used by beer brewers. The barley was first allowed to germinate, or sprout rootlets, in a moist environment. Wander then used a vacuuming process to dehydrate this softened grain, leaving behind a thick, sweet goo. He hoped this syrup, once fortified with goodies like vitamin D and phosphorous, would someday win the world's battle against malnutrition.
Ovaltine may not have solved the planet's nutrition woes, but it is a lot more wholesome than such sweet rivals as Yoo-hoo and Nesquik. Four teaspoons of Ovaltine mixed with 8 ounces of skim milk provides a solid helping of vitamins A, C, D, B1, B2, and B6, as well as niacin and, yes, that all-important phosphorous. Low-carb dieters beware: The fat content is zero, but malt is an Atkins' diet no-no.