Radio Malt was an early to mid-20th century brand of malt

Malt

Malt is germinated cereal grains that have been dried in a process known as "malting". The grains are made to germinate by soaking in water, and are then halted from germinating further by drying with hot air...

 extract preparation that followed the Minadex trend. Produced by British Drug Houses, it contained Vitamin A

Vitamin A

Vitamin A is a vitamin that is needed by the retina of the eye in the form of a specific metabolite, the light-absorbing molecule retinal, that is necessary for both low-light and color vision...

, aneurine hydrochloride

Thiamine

Thiamine or thiamin or vitamin B1 , named as the "thio-vitamine" is a water-soluble vitamin of the B complex. First named aneurin for the detrimental neurological effects if not present in the diet, it was eventually assigned the generic descriptor name vitamin B1. Its phosphate derivatives are...

, riboflavin

Riboflavin

Riboflavin, also known as vitamin B2 or additive E101, is an easily absorbed micronutrient with a key role in maintaining health in humans and animals. It is the central component of the cofactors FAD and FMN, and is therefore required by all flavoproteins. As such, vitamin B2 is required for a...

, and calciferol. The contents were sickly sweet, with a consistency between molasses

Molasses

Molasses is a viscous by-product of the processing of sugar cane, grapes or sugar beets into sugar. The word molasses comes from the Portuguese word melaço, which ultimately comes from mel, the Latin word for "honey". The quality of molasses depends on the maturity of the sugar cane or sugar beet,...

 and treacle

Treacle

Treacle is any syrup made during the refining of sugar and is defined as "uncrystallized syrup produced in refining sugar". Treacle is used chiefly in cooking as a form of sweetener or condiment....

. It is much loved by the classic character Molesworth

Nigel Molesworth

Nigel Molesworth is the supposed author of a series of books , with cartoon illustrations by Ronald Searle....

.

Radio Malt was being sold in the UK by the mid-1920s and was studied at this time as a treatment for rickets. In India it was trademarked in 1942.

A favourite of film producer and politician David Puttnam

David Puttnam

David Terence Puttnam, Baron Puttnam, CBE, FRSA is a British film producer. He sits on the Labour benches in the House of Lords, although he is not principally a politician.-Early life:...

, Radio Malt was often used in English boarding schools in an attempt to change skinny young girls into prettier roundness and given to post-World War II children to give them more bulk.