The adage, “an apple a day keeps the doctor away,” has been around for centuries and has become synonymous with good health and nutrition. The origins of this phrase are somewhat unclear, but it’s believed to have originated in Wales in the 1860s. The original phrase was “Eat an apple on going to bed, and you’ll keep the doctor from earning his bread.” Over time, the phrase evolved into the more familiar “an apple a day keeps the doctor away.”