A Mars a day helps you work, rest, and play
Posted by Jake on October 31, 2001
The answer given (this is the first item listed on your entire page) is "UK origin" advertisement for a chocolate bar.
Growing up in the US, I heard "A Milky Way a day helps you work, rest, and play" on television.
Isn't M&M/Mars a US company? I know the Mars bar in the UK is the same as a Milky Way in the US (the UK Milky Way is called 3 Musketeers in the US; in the US, a Mars bar is nougat, almonds, and chocolate).