Did you know that cod liver oil, an odd-tasting oil from the past, actually had surprising health benefits? Made from heated codfish livers, it was rich in vitamin D and A. Before vitamins were discovered, people noticed that children taking cod liver oil were less likely to develop rickets, a childhood bone disease. The UK government even issued free cod liver oil during WWII!

However, the unpleasant taste and potential for rancidity led to its decline. But with recent research showing widespread vitamin D deficiency in the UK, experts are rethinking fortification as an option. With hospital admissions for rickets on the rise, it's time to revisit this "fishy fix" from the past.

Source: https://www.bbc.com/future/article/20241023-the-truth-about-the-odd-tasting-oils-we-were-told-were-healthy