MA, my step father is British, although 2 decades older. He had perfect teeth, no cavities no rot. He attributes that to the rationing of sugar, as he never had any until he came to US in 1950s. Our taste buds recognize salt and sweet, so how does a child develop a sweet tooth when deprived of sweets. I hear that fruit was a delicacy, no fruit no sweet juices. I imagine that oranges, lemons, limes must be imported. He told me that "Yorkshire pudding" was developed from lard and flour and drippings as a filler for empty tummies.