Added Vitamin D Could Help Stop Colds and Flu

The video discusses the potential benefits of Vitamin D in preventing colds and flu, especially during winter. It highlights dietary sources of Vitamin D, such as eggs and oily fish, and its natural production through sunlight exposure. Research indicates a reduction in respiratory infections with increased Vitamin D intake, particularly for those with low initial levels. However, Public Health England advises more research before recommending widespread food fortification. Public opinions vary, with some preferring natural foods without additives.

Why does Public Health England suggest more research is needed regarding vitamin D supplementation?

What are the concerns mentioned about adding vitamins and minerals to foods?